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Finding the Fourth Proportional to 3,707.91, 5,114.97 and 2,512.95

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Solution

The fourth proportional to 3,707.91, 5,114.97 and 2,512.95 is: 3,466.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.91 : 5,114.97 = 2,512.95 : x
  2. Step 2: Convert to fraction form
    3,707.91/5,114.97 = 2,512.95/x
  3. Step 3: Cross multiply
    3,707.91x = 5,114.97 × 2,512.95
  4. Step 4: Simplify right side
    3,707.91x = 12,853,663.86
  5. Step 5: Solve for x
    x = 12,853,663.86/3,707.91
  6. Step 6: Final answer
    x = 3,466.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.