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Finding the Fourth Proportional to 21,471.52, 32,218.54 and 15,596.94

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Solution

The fourth proportional to 21,471.52, 32,218.54 and 15,596.94 is: 23,403.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,471.52 : 32,218.54 = 15,596.94 : x
  2. Step 2: Convert to fraction form
    21,471.52/32,218.54 = 15,596.94/x
  3. Step 3: Cross multiply
    21,471.52x = 32,218.54 × 15,596.94
  4. Step 4: Simplify right side
    21,471.52x = 502,510,635.27
  5. Step 5: Solve for x
    x = 502,510,635.27/21,471.52
  6. Step 6: Final answer
    x = 23,403.59

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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.