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Finding the Fourth Proportional to 60,505.94, 90,772.92 and 20,522.79

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Solution

The fourth proportional to 60,505.94, 90,772.92 and 20,522.79 is: 30,788.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,505.94 : 90,772.92 = 20,522.79 : x
  2. Step 2: Convert to fraction form
    60,505.94/90,772.92 = 20,522.79/x
  3. Step 3: Cross multiply
    60,505.94x = 90,772.92 × 20,522.79
  4. Step 4: Simplify right side
    60,505.94x = 1,862,913,743.57
  5. Step 5: Solve for x
    x = 1,862,913,743.57/60,505.94
  6. Step 6: Final answer
    x = 30,788.94

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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.