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Finding the Fourth Proportional to 8,991,029.70, 13,486,544.55 and 8,928,044.10

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Solution

The fourth proportional to 8,991,029.70, 13,486,544.55 and 8,928,044.10 is: 13,392,066.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991,029.70 : 13,486,544.55 = 8,928,044.10 : x
  2. Step 2: Convert to fraction form
    8,991,029.70/13,486,544.55 = 8,928,044.10/x
  3. Step 3: Cross multiply
    8,991,029.70x = 13,486,544.55 × 8,928,044.10
  4. Step 4: Simplify right side
    8,991,029.70x = 120,408,464,499,014.66
  5. Step 5: Solve for x
    x = 120,408,464,499,014.66/8,991,029.70
  6. Step 6: Final answer
    x = 13,392,066.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.