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Finding the Fourth Proportional to 52,643.12, 72,651.02 and 29,678.61

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Solution

The fourth proportional to 52,643.12, 72,651.02 and 29,678.61 is: 40,958.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,643.12 : 72,651.02 = 29,678.61 : x
  2. Step 2: Convert to fraction form
    52,643.12/72,651.02 = 29,678.61/x
  3. Step 3: Cross multiply
    52,643.12x = 72,651.02 × 29,678.61
  4. Step 4: Simplify right side
    52,643.12x = 2,156,181,140.29
  5. Step 5: Solve for x
    x = 2,156,181,140.29/52,643.12
  6. Step 6: Final answer
    x = 40,958.46

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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.