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Finding the Fourth Proportional to 22,658.80, 34,053.72 and 21,083.92

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Solution

The fourth proportional to 22,658.80, 34,053.72 and 21,083.92 is: 31,686.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,658.80 : 34,053.72 = 21,083.92 : x
  2. Step 2: Convert to fraction form
    22,658.80/34,053.72 = 21,083.92/x
  3. Step 3: Cross multiply
    22,658.80x = 34,053.72 × 21,083.92
  4. Step 4: Simplify right side
    22,658.80x = 717,985,908.18
  5. Step 5: Solve for x
    x = 717,985,908.18/22,658.80
  6. Step 6: Final answer
    x = 31,686.85

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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.