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Finding the Fourth Proportional to 22,169.52, 33,079.86 and 21,417.84

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Solution

The fourth proportional to 22,169.52, 33,079.86 and 21,417.84 is: 31,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,169.52 : 33,079.86 = 21,417.84 : x
  2. Step 2: Convert to fraction form
    22,169.52/33,079.86 = 21,417.84/x
  3. Step 3: Cross multiply
    22,169.52x = 33,079.86 × 21,417.84
  4. Step 4: Simplify right side
    22,169.52x = 708,499,148.70
  5. Step 5: Solve for x
    x = 708,499,148.70/22,169.52
  6. Step 6: Final answer
    x = 31,958.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.