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Finding the Fourth Proportional to 4,613.95, 6,916.77 and 1,691.57

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Solution

The fourth proportional to 4,613.95, 6,916.77 and 1,691.57 is: 2,535.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,613.95 : 6,916.77 = 1,691.57 : x
  2. Step 2: Convert to fraction form
    4,613.95/6,916.77 = 1,691.57/x
  3. Step 3: Cross multiply
    4,613.95x = 6,916.77 × 1,691.57
  4. Step 4: Simplify right side
    4,613.95x = 11,700,200.63
  5. Step 5: Solve for x
    x = 11,700,200.63/4,613.95
  6. Step 6: Final answer
    x = 2,535.83

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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.