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Finding the Fourth Proportional to 55,687.61, 83,432.97 and 36,923.15

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Solution

The fourth proportional to 55,687.61, 83,432.97 and 36,923.15 is: 55,319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,687.61 : 83,432.97 = 36,923.15 : x
  2. Step 2: Convert to fraction form
    55,687.61/83,432.97 = 36,923.15/x
  3. Step 3: Cross multiply
    55,687.61x = 83,432.97 × 36,923.15
  4. Step 4: Simplify right side
    55,687.61x = 3,080,608,066.26
  5. Step 5: Solve for x
    x = 3,080,608,066.26/55,687.61
  6. Step 6: Final answer
    x = 55,319.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.