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Finding the Fourth Proportional to 29,988.60, 44,982.90 and 28,708.80

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Solution

The fourth proportional to 29,988.60, 44,982.90 and 28,708.80 is: 43,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,988.60 : 44,982.90 = 28,708.80 : x
  2. Step 2: Convert to fraction form
    29,988.60/44,982.90 = 28,708.80/x
  3. Step 3: Cross multiply
    29,988.60x = 44,982.90 × 28,708.80
  4. Step 4: Simplify right side
    29,988.60x = 1,291,405,079.52
  5. Step 5: Solve for x
    x = 1,291,405,079.52/29,988.60
  6. Step 6: Final answer
    x = 43,063.20

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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.