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Finding the Fourth Proportional to 29,151.60, 40,207.90 and 19,063.86

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Solution

The fourth proportional to 29,151.60, 40,207.90 and 19,063.86 is: 26,294.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,151.60 : 40,207.90 = 19,063.86 : x
  2. Step 2: Convert to fraction form
    29,151.60/40,207.90 = 19,063.86/x
  3. Step 3: Cross multiply
    29,151.60x = 40,207.90 × 19,063.86
  4. Step 4: Simplify right side
    29,151.60x = 766,517,776.49
  5. Step 5: Solve for x
    x = 766,517,776.49/29,151.60
  6. Step 6: Final answer
    x = 26,294.19

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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.