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Finding the Fourth Proportional to 21,553.52, 32,330.28 and 5,971.28

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Solution

The fourth proportional to 21,553.52, 32,330.28 and 5,971.28 is: 8,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553.52 : 32,330.28 = 5,971.28 : x
  2. Step 2: Convert to fraction form
    21,553.52/32,330.28 = 5,971.28/x
  3. Step 3: Cross multiply
    21,553.52x = 32,330.28 × 5,971.28
  4. Step 4: Simplify right side
    21,553.52x = 193,053,154.36
  5. Step 5: Solve for x
    x = 193,053,154.36/21,553.52
  6. Step 6: Final answer
    x = 8,956.92

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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.