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Finding the Fourth Proportional to 61,766.60, 92,693.10 and 26,731.40

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Solution

The fourth proportional to 61,766.60, 92,693.10 and 26,731.40 is: 40,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,766.60 : 92,693.10 = 26,731.40 : x
  2. Step 2: Convert to fraction form
    61,766.60/92,693.10 = 26,731.40/x
  3. Step 3: Cross multiply
    61,766.60x = 92,693.10 × 26,731.40
  4. Step 4: Simplify right side
    61,766.60x = 2,477,816,333.34
  5. Step 5: Solve for x
    x = 2,477,816,333.34/61,766.60
  6. Step 6: Final answer
    x = 40,115.80

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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.