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Finding the Fourth Proportional to 44,657.40, 66,986.10 and 18,348.60

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Solution

The fourth proportional to 44,657.40, 66,986.10 and 18,348.60 is: 27,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,657.40 : 66,986.10 = 18,348.60 : x
  2. Step 2: Convert to fraction form
    44,657.40/66,986.10 = 18,348.60/x
  3. Step 3: Cross multiply
    44,657.40x = 66,986.10 × 18,348.60
  4. Step 4: Simplify right side
    44,657.40x = 1,229,101,154.46
  5. Step 5: Solve for x
    x = 1,229,101,154.46/44,657.40
  6. Step 6: Final answer
    x = 27,522.90

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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.