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Finding the Fourth Proportional to 41,859.04, 62,781.64 and 13,779.48

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Solution

The fourth proportional to 41,859.04, 62,781.64 and 13,779.48 is: 20,666.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,859.04 : 62,781.64 = 13,779.48 : x
  2. Step 2: Convert to fraction form
    41,859.04/62,781.64 = 13,779.48/x
  3. Step 3: Cross multiply
    41,859.04x = 62,781.64 × 13,779.48
  4. Step 4: Simplify right side
    41,859.04x = 865,098,352.75
  5. Step 5: Solve for x
    x = 865,098,352.75/41,859.04
  6. Step 6: Final answer
    x = 20,666.94

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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.