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Finding the Fourth Proportional to 14,909.70, 20,593.42 and 10,870.13

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Solution

The fourth proportional to 14,909.70, 20,593.42 and 10,870.13 is: 15,013.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,909.70 : 20,593.42 = 10,870.13 : x
  2. Step 2: Convert to fraction form
    14,909.70/20,593.42 = 10,870.13/x
  3. Step 3: Cross multiply
    14,909.70x = 20,593.42 × 10,870.13
  4. Step 4: Simplify right side
    14,909.70x = 223,853,152.54
  5. Step 5: Solve for x
    x = 223,853,152.54/14,909.70
  6. Step 6: Final answer
    x = 15,013.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.