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Finding the Fourth Proportional to 72,902.74, 109,354.11 and 17,498.74

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Solution

The fourth proportional to 72,902.74, 109,354.11 and 17,498.74 is: 26,248.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,902.74 : 109,354.11 = 17,498.74 : x
  2. Step 2: Convert to fraction form
    72,902.74/109,354.11 = 17,498.74/x
  3. Step 3: Cross multiply
    72,902.74x = 109,354.11 × 17,498.74
  4. Step 4: Simplify right side
    72,902.74x = 1,913,559,460.06
  5. Step 5: Solve for x
    x = 1,913,559,460.06/72,902.74
  6. Step 6: Final answer
    x = 26,248.11

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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.