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Finding the Fourth Proportional to 10,003.70, 14,987.10 and 5,845.70

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Solution

The fourth proportional to 10,003.70, 14,987.10 and 5,845.70 is: 8,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,003.70 : 14,987.10 = 5,845.70 : x
  2. Step 2: Convert to fraction form
    10,003.70/14,987.10 = 5,845.70/x
  3. Step 3: Cross multiply
    10,003.70x = 14,987.10 × 5,845.70
  4. Step 4: Simplify right side
    10,003.70x = 87,610,090.47
  5. Step 5: Solve for x
    x = 87,610,090.47/10,003.70
  6. Step 6: Final answer
    x = 8,757.77

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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.