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Finding the Fourth Proportional to 57,693.66, 86,620.98 and 29,633.08

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Solution

The fourth proportional to 57,693.66, 86,620.98 and 29,633.08 is: 44,490.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,693.66 : 86,620.98 = 29,633.08 : x
  2. Step 2: Convert to fraction form
    57,693.66/86,620.98 = 29,633.08/x
  3. Step 3: Cross multiply
    57,693.66x = 86,620.98 × 29,633.08
  4. Step 4: Simplify right side
    57,693.66x = 2,566,846,430.02
  5. Step 5: Solve for x
    x = 2,566,846,430.02/57,693.66
  6. Step 6: Final answer
    x = 44,490.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.