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Finding the Fourth Proportional to 14,920.70, 22,381.07 and 7,105.82

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Solution

The fourth proportional to 14,920.70, 22,381.07 and 7,105.82 is: 10,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.70 : 22,381.07 = 7,105.82 : x
  2. Step 2: Convert to fraction form
    14,920.70/22,381.07 = 7,105.82/x
  3. Step 3: Cross multiply
    14,920.70x = 22,381.07 × 7,105.82
  4. Step 4: Simplify right side
    14,920.70x = 159,035,707.39
  5. Step 5: Solve for x
    x = 159,035,707.39/14,920.70
  6. Step 6: Final answer
    x = 10,658.73

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Similar ratio
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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.