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Finding the Fourth Proportional to 29,373.96, 40,535.94 and 15,945.11

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Solution

The fourth proportional to 29,373.96, 40,535.94 and 15,945.11 is: 22,004.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,373.96 : 40,535.94 = 15,945.11 : x
  2. Step 2: Convert to fraction form
    29,373.96/40,535.94 = 15,945.11/x
  3. Step 3: Cross multiply
    29,373.96x = 40,535.94 × 15,945.11
  4. Step 4: Simplify right side
    29,373.96x = 646,350,022.25
  5. Step 5: Solve for x
    x = 646,350,022.25/29,373.96
  6. Step 6: Final answer
    x = 22,004.18

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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.