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Finding the Fourth Proportional to 2,409.68, 3,613.15 and 948.04

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Solution

The fourth proportional to 2,409.68, 3,613.15 and 948.04 is: 1,421.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.68 : 3,613.15 = 948.04 : x
  2. Step 2: Convert to fraction form
    2,409.68/3,613.15 = 948.04/x
  3. Step 3: Cross multiply
    2,409.68x = 3,613.15 × 948.04
  4. Step 4: Simplify right side
    2,409.68x = 3,425,387.92
  5. Step 5: Solve for x
    x = 3,425,387.92/2,409.68
  6. Step 6: Final answer
    x = 1,421.51

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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.