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Finding the Fourth Proportional to 19,593.70, 27,039.29 and 10,641.20

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Solution

The fourth proportional to 19,593.70, 27,039.29 and 10,641.20 is: 14,684.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,593.70 : 27,039.29 = 10,641.20 : x
  2. Step 2: Convert to fraction form
    19,593.70/27,039.29 = 10,641.20/x
  3. Step 3: Cross multiply
    19,593.70x = 27,039.29 × 10,641.20
  4. Step 4: Simplify right side
    19,593.70x = 287,730,586.95
  5. Step 5: Solve for x
    x = 287,730,586.95/19,593.70
  6. Step 6: Final answer
    x = 14,684.85

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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.