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Finding the Fourth Proportional to 61,358.88, 92,020.16 and 26,290.40

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Solution

The fourth proportional to 61,358.88, 92,020.16 and 26,290.40 is: 39,427.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,358.88 : 92,020.16 = 26,290.40 : x
  2. Step 2: Convert to fraction form
    61,358.88/92,020.16 = 26,290.40/x
  3. Step 3: Cross multiply
    61,358.88x = 92,020.16 × 26,290.40
  4. Step 4: Simplify right side
    61,358.88x = 2,419,246,814.46
  5. Step 5: Solve for x
    x = 2,419,246,814.46/61,358.88
  6. Step 6: Final answer
    x = 39,427.82

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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.