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Finding the Fourth Proportional to 61,486.12, 92,112.54 and 36,473.32

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Solution

The fourth proportional to 61,486.12, 92,112.54 and 36,473.32 is: 54,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,486.12 : 92,112.54 = 36,473.32 : x
  2. Step 2: Convert to fraction form
    61,486.12/92,112.54 = 36,473.32/x
  3. Step 3: Cross multiply
    61,486.12x = 92,112.54 × 36,473.32
  4. Step 4: Simplify right side
    61,486.12x = 3,359,650,147.43
  5. Step 5: Solve for x
    x = 3,359,650,147.43/61,486.12
  6. Step 6: Final answer
    x = 54,640.79

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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.