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Finding the Fourth Proportional to 8,784,383.60, 13,176,575.40 and 8,448,460.40

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Solution

The fourth proportional to 8,784,383.60, 13,176,575.40 and 8,448,460.40 is: 12,672,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784,383.60 : 13,176,575.40 = 8,448,460.40 : x
  2. Step 2: Convert to fraction form
    8,784,383.60/13,176,575.40 = 8,448,460.40/x
  3. Step 3: Cross multiply
    8,784,383.60x = 13,176,575.40 × 8,448,460.40
  4. Step 4: Simplify right side
    8,784,383.60x = 111,321,775,474,514.17
  5. Step 5: Solve for x
    x = 111,321,775,474,514.17/8,784,383.60
  6. Step 6: Final answer
    x = 12,672,690.60

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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.