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Finding the Fourth Proportional to 62,299.76, 93,415.08 and 20,724.08

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Solution

The fourth proportional to 62,299.76, 93,415.08 and 20,724.08 is: 31,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,299.76 : 93,415.08 = 20,724.08 : x
  2. Step 2: Convert to fraction form
    62,299.76/93,415.08 = 20,724.08/x
  3. Step 3: Cross multiply
    62,299.76x = 93,415.08 × 20,724.08
  4. Step 4: Simplify right side
    62,299.76x = 1,935,941,591.13
  5. Step 5: Solve for x
    x = 1,935,941,591.13/62,299.76
  6. Step 6: Final answer
    x = 31,074.62

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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.