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Finding the Fourth Proportional to 9,920.93, 14,882.63 and 4,375.67

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Solution

The fourth proportional to 9,920.93, 14,882.63 and 4,375.67 is: 6,564.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.93 : 14,882.63 = 4,375.67 : x
  2. Step 2: Convert to fraction form
    9,920.93/14,882.63 = 4,375.67/x
  3. Step 3: Cross multiply
    9,920.93x = 14,882.63 × 4,375.67
  4. Step 4: Simplify right side
    9,920.93x = 65,121,381.32
  5. Step 5: Solve for x
    x = 65,121,381.32/9,920.93
  6. Step 6: Final answer
    x = 6,564.04

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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.