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Finding the Fourth Proportional to 57,445.65, 86,169.05 and 17,471.11

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Solution

The fourth proportional to 57,445.65, 86,169.05 and 17,471.11 is: 26,206.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,445.65 : 86,169.05 = 17,471.11 : x
  2. Step 2: Convert to fraction form
    57,445.65/86,169.05 = 17,471.11/x
  3. Step 3: Cross multiply
    57,445.65x = 86,169.05 × 17,471.11
  4. Step 4: Simplify right side
    57,445.65x = 1,505,468,779.40
  5. Step 5: Solve for x
    x = 1,505,468,779.40/57,445.65
  6. Step 6: Final answer
    x = 26,206.84

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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.