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Finding the Fourth Proportional to 9,063.82, 12,508.14 and 5,920

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Solution

The fourth proportional to 9,063.82, 12,508.14 and 5,920 is: 8,169.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,063.82 : 12,508.14 = 5,920 : x
  2. Step 2: Convert to fraction form
    9,063.82/12,508.14 = 5,920/x
  3. Step 3: Cross multiply
    9,063.82x = 12,508.14 × 5,920
  4. Step 4: Simplify right side
    9,063.82x = 74,048,188.80
  5. Step 5: Solve for x
    x = 74,048,188.80/9,063.82
  6. Step 6: Final answer
    x = 8,169.64

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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.