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Finding the Fourth Proportional to 61,422.20, 92,071.74 and 25,892.06

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Solution

The fourth proportional to 61,422.20, 92,071.74 and 25,892.06 is: 38,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,422.20 : 92,071.74 = 25,892.06 : x
  2. Step 2: Convert to fraction form
    61,422.20/92,071.74 = 25,892.06/x
  3. Step 3: Cross multiply
    61,422.20x = 92,071.74 × 25,892.06
  4. Step 4: Simplify right side
    61,422.20x = 2,383,927,016.38
  5. Step 5: Solve for x
    x = 2,383,927,016.38/61,422.20
  6. Step 6: Final answer
    x = 38,812.14

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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.