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Finding the Fourth Proportional to 70,387.92, 105,595.92 and 23,639.04

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Solution

The fourth proportional to 70,387.92, 105,595.92 and 23,639.04 is: 35,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,387.92 : 105,595.92 = 23,639.04 : x
  2. Step 2: Convert to fraction form
    70,387.92/105,595.92 = 23,639.04/x
  3. Step 3: Cross multiply
    70,387.92x = 105,595.92 × 23,639.04
  4. Step 4: Simplify right side
    70,387.92x = 2,496,186,176.72
  5. Step 5: Solve for x
    x = 2,496,186,176.72/70,387.92
  6. Step 6: Final answer
    x = 35,463.28

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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.