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Finding the Fourth Proportional to 36,871.31, 55,307.18 and 9,169.31

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Solution

The fourth proportional to 36,871.31, 55,307.18 and 9,169.31 is: 13,754.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,871.31 : 55,307.18 = 9,169.31 : x
  2. Step 2: Convert to fraction form
    36,871.31/55,307.18 = 9,169.31/x
  3. Step 3: Cross multiply
    36,871.31x = 55,307.18 × 9,169.31
  4. Step 4: Simplify right side
    36,871.31x = 507,128,839.84
  5. Step 5: Solve for x
    x = 507,128,839.84/36,871.31
  6. Step 6: Final answer
    x = 13,754.02

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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.