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Finding the Fourth Proportional to 8,592.92, 12,889.28 and 3,398.76

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Solution

The fourth proportional to 8,592.92, 12,889.28 and 3,398.76 is: 5,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,592.92 : 12,889.28 = 3,398.76 : x
  2. Step 2: Convert to fraction form
    8,592.92/12,889.28 = 3,398.76/x
  3. Step 3: Cross multiply
    8,592.92x = 12,889.28 × 3,398.76
  4. Step 4: Simplify right side
    8,592.92x = 43,807,569.29
  5. Step 5: Solve for x
    x = 43,807,569.29/8,592.92
  6. Step 6: Final answer
    x = 5,098.10

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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.