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Finding the Fourth Proportional to 60,062.96, 90,068.68 and 20,624

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Solution

The fourth proportional to 60,062.96, 90,068.68 and 20,624 is: 30,927.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,062.96 : 90,068.68 = 20,624 : x
  2. Step 2: Convert to fraction form
    60,062.96/90,068.68 = 20,624/x
  3. Step 3: Cross multiply
    60,062.96x = 90,068.68 × 20,624
  4. Step 4: Simplify right side
    60,062.96x = 1,857,576,456.32
  5. Step 5: Solve for x
    x = 1,857,576,456.32/60,062.96
  6. Step 6: Final answer
    x = 30,927.15

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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.