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Finding the Fourth Proportional to 5,290.62, 7,948.08 and 4,369.68

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Solution

The fourth proportional to 5,290.62, 7,948.08 and 4,369.68 is: 6,564.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.62 : 7,948.08 = 4,369.68 : x
  2. Step 2: Convert to fraction form
    5,290.62/7,948.08 = 4,369.68/x
  3. Step 3: Cross multiply
    5,290.62x = 7,948.08 × 4,369.68
  4. Step 4: Simplify right side
    5,290.62x = 34,730,566.21
  5. Step 5: Solve for x
    x = 34,730,566.21/5,290.62
  6. Step 6: Final answer
    x = 6,564.56

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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.