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Finding the Fourth Proportional to 8,869.68, 12,239.64 and 5,092.24

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Solution

The fourth proportional to 8,869.68, 12,239.64 and 5,092.24 is: 7,026.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.68 : 12,239.64 = 5,092.24 : x
  2. Step 2: Convert to fraction form
    8,869.68/12,239.64 = 5,092.24/x
  3. Step 3: Cross multiply
    8,869.68x = 12,239.64 × 5,092.24
  4. Step 4: Simplify right side
    8,869.68x = 62,327,184.39
  5. Step 5: Solve for x
    x = 62,327,184.39/8,869.68
  6. Step 6: Final answer
    x = 7,026.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.