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Finding the Fourth Proportional to 61,602.20, 92,403.30 and 26,581.40

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Solution

The fourth proportional to 61,602.20, 92,403.30 and 26,581.40 is: 39,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,602.20 : 92,403.30 = 26,581.40 : x
  2. Step 2: Convert to fraction form
    61,602.20/92,403.30 = 26,581.40/x
  3. Step 3: Cross multiply
    61,602.20x = 92,403.30 × 26,581.40
  4. Step 4: Simplify right side
    61,602.20x = 2,456,209,078.62
  5. Step 5: Solve for x
    x = 2,456,209,078.62/61,602.20
  6. Step 6: Final answer
    x = 39,872.10

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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.