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Finding the Fourth Proportional to 61,762.74, 92,645.12 and 17,390.55

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Solution

The fourth proportional to 61,762.74, 92,645.12 and 17,390.55 is: 26,086.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,762.74 : 92,645.12 = 17,390.55 : x
  2. Step 2: Convert to fraction form
    61,762.74/92,645.12 = 17,390.55/x
  3. Step 3: Cross multiply
    61,762.74x = 92,645.12 × 17,390.55
  4. Step 4: Simplify right side
    61,762.74x = 1,611,149,591.62
  5. Step 5: Solve for x
    x = 1,611,149,591.62/61,762.74
  6. Step 6: Final answer
    x = 26,086.11

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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.