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Finding the Fourth Proportional to 22,418.56, 33,607.05 and 9,931.91

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Solution

The fourth proportional to 22,418.56, 33,607.05 and 9,931.91 is: 14,888.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,418.56 : 33,607.05 = 9,931.91 : x
  2. Step 2: Convert to fraction form
    22,418.56/33,607.05 = 9,931.91/x
  3. Step 3: Cross multiply
    22,418.56x = 33,607.05 × 9,931.91
  4. Step 4: Simplify right side
    22,418.56x = 333,782,195.97
  5. Step 5: Solve for x
    x = 333,782,195.97/22,418.56
  6. Step 6: Final answer
    x = 14,888.66

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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.