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Finding the Fourth Proportional to 29,842.80, 44,764.20 and 28,114.80

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Solution

The fourth proportional to 29,842.80, 44,764.20 and 28,114.80 is: 42,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,842.80 : 44,764.20 = 28,114.80 : x
  2. Step 2: Convert to fraction form
    29,842.80/44,764.20 = 28,114.80/x
  3. Step 3: Cross multiply
    29,842.80x = 44,764.20 × 28,114.80
  4. Step 4: Simplify right side
    29,842.80x = 1,258,536,530.16
  5. Step 5: Solve for x
    x = 1,258,536,530.16/29,842.80
  6. Step 6: Final answer
    x = 42,172.20

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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.