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Finding the Fourth Proportional to 21,633.52, 29,854.24 and 11,697.52

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Solution

The fourth proportional to 21,633.52, 29,854.24 and 11,697.52 is: 16,142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,633.52 : 29,854.24 = 11,697.52 : x
  2. Step 2: Convert to fraction form
    21,633.52/29,854.24 = 11,697.52/x
  3. Step 3: Cross multiply
    21,633.52x = 29,854.24 × 11,697.52
  4. Step 4: Simplify right side
    21,633.52x = 349,220,569.48
  5. Step 5: Solve for x
    x = 349,220,569.48/21,633.52
  6. Step 6: Final answer
    x = 16,142.57

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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.