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Finding the Fourth Proportional to 72,902.96, 109,354.45 and 17,498.96

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Solution

The fourth proportional to 72,902.96, 109,354.45 and 17,498.96 is: 26,248.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,902.96 : 109,354.45 = 17,498.96 : x
  2. Step 2: Convert to fraction form
    72,902.96/109,354.45 = 17,498.96/x
  3. Step 3: Cross multiply
    72,902.96x = 109,354.45 × 17,498.96
  4. Step 4: Simplify right side
    72,902.96x = 1,913,589,058.88
  5. Step 5: Solve for x
    x = 1,913,589,058.88/72,902.96
  6. Step 6: Final answer
    x = 26,248.44

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Similar ratio
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1.5x scale

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.