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Finding the Fourth Proportional to 5,252.67, 7,881.12 and 5,169.74

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Solution

The fourth proportional to 5,252.67, 7,881.12 and 5,169.74 is: 7,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252.67 : 7,881.12 = 5,169.74 : x
  2. Step 2: Convert to fraction form
    5,252.67/7,881.12 = 5,169.74/x
  3. Step 3: Cross multiply
    5,252.67x = 7,881.12 × 5,169.74
  4. Step 4: Simplify right side
    5,252.67x = 40,743,301.90
  5. Step 5: Solve for x
    x = 40,743,301.90/5,252.67
  6. Step 6: Final answer
    x = 7,756.68

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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.