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Finding the Fourth Proportional to 8,871.65, 13,309.43 and 2,632.15

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Solution

The fourth proportional to 8,871.65, 13,309.43 and 2,632.15 is: 3,948.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.65 : 13,309.43 = 2,632.15 : x
  2. Step 2: Convert to fraction form
    8,871.65/13,309.43 = 2,632.15/x
  3. Step 3: Cross multiply
    8,871.65x = 13,309.43 × 2,632.15
  4. Step 4: Simplify right side
    8,871.65x = 35,032,416.17
  5. Step 5: Solve for x
    x = 35,032,416.17/8,871.65
  6. Step 6: Final answer
    x = 3,948.81

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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.