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Finding the Fourth Proportional to 44,655.48, 66,991.86 and 13,491

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Solution

The fourth proportional to 44,655.48, 66,991.86 and 13,491 is: 20,239.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,655.48 : 66,991.86 = 13,491 : x
  2. Step 2: Convert to fraction form
    44,655.48/66,991.86 = 13,491/x
  3. Step 3: Cross multiply
    44,655.48x = 66,991.86 × 13,491
  4. Step 4: Simplify right side
    44,655.48x = 903,787,183.26
  5. Step 5: Solve for x
    x = 903,787,183.26/44,655.48
  6. Step 6: Final answer
    x = 20,239.11

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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.