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Finding the Fourth Proportional to 44,156.92, 66,248.16 and 12,992.08

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Solution

The fourth proportional to 44,156.92, 66,248.16 and 12,992.08 is: 19,491.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,156.92 : 66,248.16 = 12,992.08 : x
  2. Step 2: Convert to fraction form
    44,156.92/66,248.16 = 12,992.08/x
  3. Step 3: Cross multiply
    44,156.92x = 66,248.16 × 12,992.08
  4. Step 4: Simplify right side
    44,156.92x = 860,701,394.57
  5. Step 5: Solve for x
    x = 860,701,394.57/44,156.92
  6. Step 6: Final answer
    x = 19,491.88

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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.