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Finding the Fourth Proportional to 29,374.25, 40,535.78 and 15,945.12

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Solution

The fourth proportional to 29,374.25, 40,535.78 and 15,945.12 is: 22,003.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,374.25 : 40,535.78 = 15,945.12 : x
  2. Step 2: Convert to fraction form
    29,374.25/40,535.78 = 15,945.12/x
  3. Step 3: Cross multiply
    29,374.25x = 40,535.78 × 15,945.12
  4. Step 4: Simplify right side
    29,374.25x = 646,347,796.67
  5. Step 5: Solve for x
    x = 646,347,796.67/29,374.25
  6. Step 6: Final answer
    x = 22,003.89

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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.