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Finding the Fourth Proportional to 4,874.28, 6,718.86 and 4,283.80

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Solution

The fourth proportional to 4,874.28, 6,718.86 and 4,283.80 is: 5,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.28 : 6,718.86 = 4,283.80 : x
  2. Step 2: Convert to fraction form
    4,874.28/6,718.86 = 4,283.80/x
  3. Step 3: Cross multiply
    4,874.28x = 6,718.86 × 4,283.80
  4. Step 4: Simplify right side
    4,874.28x = 28,782,252.47
  5. Step 5: Solve for x
    x = 28,782,252.47/4,874.28
  6. Step 6: Final answer
    x = 5,904.92

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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.