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Finding the Fourth Proportional to 52,530.90, 72,489.83 and 29,866.79

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Solution

The fourth proportional to 52,530.90, 72,489.83 and 29,866.79 is: 41,214.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,530.90 : 72,489.83 = 29,866.79 : x
  2. Step 2: Convert to fraction form
    52,530.90/72,489.83 = 29,866.79/x
  3. Step 3: Cross multiply
    52,530.90x = 72,489.83 × 29,866.79
  4. Step 4: Simplify right side
    52,530.90x = 2,165,038,017.96
  5. Step 5: Solve for x
    x = 2,165,038,017.96/52,530.90
  6. Step 6: Final answer
    x = 41,214.56

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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.