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Finding the Fourth Proportional to 62,179.16, 93,248.58 and 20,615

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Solution

The fourth proportional to 62,179.16, 93,248.58 and 20,615 is: 30,915.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,179.16 : 93,248.58 = 20,615 : x
  2. Step 2: Convert to fraction form
    62,179.16/93,248.58 = 20,615/x
  3. Step 3: Cross multiply
    62,179.16x = 93,248.58 × 20,615
  4. Step 4: Simplify right side
    62,179.16x = 1,922,319,476.70
  5. Step 5: Solve for x
    x = 1,922,319,476.70/62,179.16
  6. Step 6: Final answer
    x = 30,915.82

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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.