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Finding the Fourth Proportional to 8,498.92, 12,749.76 and 2,654.32

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Solution

The fourth proportional to 8,498.92, 12,749.76 and 2,654.32 is: 3,981.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,498.92 : 12,749.76 = 2,654.32 : x
  2. Step 2: Convert to fraction form
    8,498.92/12,749.76 = 2,654.32/x
  3. Step 3: Cross multiply
    8,498.92x = 12,749.76 × 2,654.32
  4. Step 4: Simplify right side
    8,498.92x = 33,841,942.96
  5. Step 5: Solve for x
    x = 33,841,942.96/8,498.92
  6. Step 6: Final answer
    x = 3,981.91

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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.