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Finding the Fourth Proportional to 3,805.60, 5,708.25 and 1,465.18

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Solution

The fourth proportional to 3,805.60, 5,708.25 and 1,465.18 is: 2,197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.60 : 5,708.25 = 1,465.18 : x
  2. Step 2: Convert to fraction form
    3,805.60/5,708.25 = 1,465.18/x
  3. Step 3: Cross multiply
    3,805.60x = 5,708.25 × 1,465.18
  4. Step 4: Simplify right side
    3,805.60x = 8,363,613.74
  5. Step 5: Solve for x
    x = 8,363,613.74/3,805.60
  6. Step 6: Final answer
    x = 2,197.71

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1.5x scale

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.