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Finding the Fourth Proportional to 61,241.67, 91,862.50 and 16,868.86

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Solution

The fourth proportional to 61,241.67, 91,862.50 and 16,868.86 is: 25,303.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,241.67 : 91,862.50 = 16,868.86 : x
  2. Step 2: Convert to fraction form
    61,241.67/91,862.50 = 16,868.86/x
  3. Step 3: Cross multiply
    61,241.67x = 91,862.50 × 16,868.86
  4. Step 4: Simplify right side
    61,241.67x = 1,549,615,609.58
  5. Step 5: Solve for x
    x = 1,549,615,609.58/61,241.67
  6. Step 6: Final answer
    x = 25,303.29

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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.