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Finding the Fourth Proportional to 6,275.16, 8,658.90 and 3,480.66

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Solution

The fourth proportional to 6,275.16, 8,658.90 and 3,480.66 is: 4,802.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,275.16 : 8,658.90 = 3,480.66 : x
  2. Step 2: Convert to fraction form
    6,275.16/8,658.90 = 3,480.66/x
  3. Step 3: Cross multiply
    6,275.16x = 8,658.90 × 3,480.66
  4. Step 4: Simplify right side
    6,275.16x = 30,138,686.87
  5. Step 5: Solve for x
    x = 30,138,686.87/6,275.16
  6. Step 6: Final answer
    x = 4,802.86

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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.