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Finding the Fourth Proportional to 5,162.81, 7,752.11 and 4,551.66

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Solution

The fourth proportional to 5,162.81, 7,752.11 and 4,551.66 is: 6,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,162.81 : 7,752.11 = 4,551.66 : x
  2. Step 2: Convert to fraction form
    5,162.81/7,752.11 = 4,551.66/x
  3. Step 3: Cross multiply
    5,162.81x = 7,752.11 × 4,551.66
  4. Step 4: Simplify right side
    5,162.81x = 35,284,946.24
  5. Step 5: Solve for x
    x = 35,284,946.24/5,162.81
  6. Step 6: Final answer
    x = 6,834.45

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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.