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Finding the Fourth Proportional to 29,608.60, 44,404.80 and 12,080.20

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Solution

The fourth proportional to 29,608.60, 44,404.80 and 12,080.20 is: 18,117.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,608.60 : 44,404.80 = 12,080.20 : x
  2. Step 2: Convert to fraction form
    29,608.60/44,404.80 = 12,080.20/x
  3. Step 3: Cross multiply
    29,608.60x = 44,404.80 × 12,080.20
  4. Step 4: Simplify right side
    29,608.60x = 536,418,864.96
  5. Step 5: Solve for x
    x = 536,418,864.96/29,608.60
  6. Step 6: Final answer
    x = 18,117.00

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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.