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Finding the Fourth Proportional to 5,375.86, 8,068.19 and 4,752.87

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Solution

The fourth proportional to 5,375.86, 8,068.19 and 4,752.87 is: 7,133.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.86 : 8,068.19 = 4,752.87 : x
  2. Step 2: Convert to fraction form
    5,375.86/8,068.19 = 4,752.87/x
  3. Step 3: Cross multiply
    5,375.86x = 8,068.19 × 4,752.87
  4. Step 4: Simplify right side
    5,375.86x = 38,347,058.21
  5. Step 5: Solve for x
    x = 38,347,058.21/5,375.86
  6. Step 6: Final answer
    x = 7,133.20

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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.