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Finding the Fourth Proportional to 22,443.67, 30,966.87 and 14,484.21

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Solution

The fourth proportional to 22,443.67, 30,966.87 and 14,484.21 is: 19,984.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,443.67 : 30,966.87 = 14,484.21 : x
  2. Step 2: Convert to fraction form
    22,443.67/30,966.87 = 14,484.21/x
  3. Step 3: Cross multiply
    22,443.67x = 30,966.87 × 14,484.21
  4. Step 4: Simplify right side
    22,443.67x = 448,530,648.12
  5. Step 5: Solve for x
    x = 448,530,648.12/22,443.67
  6. Step 6: Final answer
    x = 19,984.73

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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.