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Finding the Fourth Proportional to 48,390.41, 66,871.17 and 36,432.99

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Solution

The fourth proportional to 48,390.41, 66,871.17 and 36,432.99 is: 50,347.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,390.41 : 66,871.17 = 36,432.99 : x
  2. Step 2: Convert to fraction form
    48,390.41/66,871.17 = 36,432.99/x
  3. Step 3: Cross multiply
    48,390.41x = 66,871.17 × 36,432.99
  4. Step 4: Simplify right side
    48,390.41x = 2,436,316,667.90
  5. Step 5: Solve for x
    x = 2,436,316,667.90/48,390.41
  6. Step 6: Final answer
    x = 50,347.09

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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.