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Finding the Fourth Proportional to 52,881.90, 72,976.68 and 29,008.68

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Solution

The fourth proportional to 52,881.90, 72,976.68 and 29,008.68 is: 40,031.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,881.90 : 72,976.68 = 29,008.68 : x
  2. Step 2: Convert to fraction form
    52,881.90/72,976.68 = 29,008.68/x
  3. Step 3: Cross multiply
    52,881.90x = 72,976.68 × 29,008.68
  4. Step 4: Simplify right side
    52,881.90x = 2,116,957,157.58
  5. Step 5: Solve for x
    x = 2,116,957,157.58/52,881.90
  6. Step 6: Final answer
    x = 40,031.79

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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.