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Finding the Fourth Proportional to 65,471.14, 90,350.79 and 37,177.42

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Solution

The fourth proportional to 65,471.14, 90,350.79 and 37,177.42 is: 51,305.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,471.14 : 90,350.79 = 37,177.42 : x
  2. Step 2: Convert to fraction form
    65,471.14/90,350.79 = 37,177.42/x
  3. Step 3: Cross multiply
    65,471.14x = 90,350.79 × 37,177.42
  4. Step 4: Simplify right side
    65,471.14x = 3,359,009,267.16
  5. Step 5: Solve for x
    x = 3,359,009,267.16/65,471.14
  6. Step 6: Final answer
    x = 51,305.19

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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.