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Finding the Fourth Proportional to 43,639.76, 60,271.92 and 29,468

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Solution

The fourth proportional to 43,639.76, 60,271.92 and 29,468 is: 40,698.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,639.76 : 60,271.92 = 29,468 : x
  2. Step 2: Convert to fraction form
    43,639.76/60,271.92 = 29,468/x
  3. Step 3: Cross multiply
    43,639.76x = 60,271.92 × 29,468
  4. Step 4: Simplify right side
    43,639.76x = 1,776,092,938.56
  5. Step 5: Solve for x
    x = 1,776,092,938.56/43,639.76
  6. Step 6: Final answer
    x = 40,698.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.