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Finding the Fourth Proportional to 44,652.56, 66,978.81 and 13,487.81

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Solution

The fourth proportional to 44,652.56, 66,978.81 and 13,487.81 is: 20,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,652.56 : 66,978.81 = 13,487.81 : x
  2. Step 2: Convert to fraction form
    44,652.56/66,978.81 = 13,487.81/x
  3. Step 3: Cross multiply
    44,652.56x = 66,978.81 × 13,487.81
  4. Step 4: Simplify right side
    44,652.56x = 903,397,128.41
  5. Step 5: Solve for x
    x = 903,397,128.41/44,652.56
  6. Step 6: Final answer
    x = 20,231.70

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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.