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Finding the Fourth Proportional to 21,366.68, 32,008.68 and 13,022.69

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Solution

The fourth proportional to 21,366.68, 32,008.68 and 13,022.69 is: 19,508.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366.68 : 32,008.68 = 13,022.69 : x
  2. Step 2: Convert to fraction form
    21,366.68/32,008.68 = 13,022.69/x
  3. Step 3: Cross multiply
    21,366.68x = 32,008.68 × 13,022.69
  4. Step 4: Simplify right side
    21,366.68x = 416,838,956.91
  5. Step 5: Solve for x
    x = 416,838,956.91/21,366.68
  6. Step 6: Final answer
    x = 19,508.84

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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.