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Finding the Fourth Proportional to 7,275.42, 10,913.13 and 2,080.08

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Solution

The fourth proportional to 7,275.42, 10,913.13 and 2,080.08 is: 3,120.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.42 : 10,913.13 = 2,080.08 : x
  2. Step 2: Convert to fraction form
    7,275.42/10,913.13 = 2,080.08/x
  3. Step 3: Cross multiply
    7,275.42x = 10,913.13 × 2,080.08
  4. Step 4: Simplify right side
    7,275.42x = 22,700,183.45
  5. Step 5: Solve for x
    x = 22,700,183.45/7,275.42
  6. Step 6: Final answer
    x = 3,120.12

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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.