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Finding the Fourth Proportional to 22,991.84, 31,861.88 and 22,548.97

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Solution

The fourth proportional to 22,991.84, 31,861.88 and 22,548.97 is: 31,248.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,991.84 : 31,861.88 = 22,548.97 : x
  2. Step 2: Convert to fraction form
    22,991.84/31,861.88 = 22,548.97/x
  3. Step 3: Cross multiply
    22,991.84x = 31,861.88 × 22,548.97
  4. Step 4: Simplify right side
    22,991.84x = 718,452,576.26
  5. Step 5: Solve for x
    x = 718,452,576.26/22,991.84
  6. Step 6: Final answer
    x = 31,248.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.