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Finding the Fourth Proportional to 16,486.53, 22,750.94 and 9,680.45

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Solution

The fourth proportional to 16,486.53, 22,750.94 and 9,680.45 is: 13,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,486.53 : 22,750.94 = 9,680.45 : x
  2. Step 2: Convert to fraction form
    16,486.53/22,750.94 = 9,680.45/x
  3. Step 3: Cross multiply
    16,486.53x = 22,750.94 × 9,680.45
  4. Step 4: Simplify right side
    16,486.53x = 220,239,174.97
  5. Step 5: Solve for x
    x = 220,239,174.97/16,486.53
  6. Step 6: Final answer
    x = 13,358.73

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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.