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Finding the Fourth Proportional to 52,643.69, 72,651.80 and 29,679.17

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Solution

The fourth proportional to 52,643.69, 72,651.80 and 29,679.17 is: 40,959.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,643.69 : 72,651.80 = 29,679.17 : x
  2. Step 2: Convert to fraction form
    52,643.69/72,651.80 = 29,679.17/x
  3. Step 3: Cross multiply
    52,643.69x = 72,651.80 × 29,679.17
  4. Step 4: Simplify right side
    52,643.69x = 2,156,245,156.24
  5. Step 5: Solve for x
    x = 2,156,245,156.24/52,643.69
  6. Step 6: Final answer
    x = 40,959.24

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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.