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Finding the Fourth Proportional to 6,283.80, 8,671.84 and 3,631.16

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Solution

The fourth proportional to 6,283.80, 8,671.84 and 3,631.16 is: 5,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,283.80 : 8,671.84 = 3,631.16 : x
  2. Step 2: Convert to fraction form
    6,283.80/8,671.84 = 3,631.16/x
  3. Step 3: Cross multiply
    6,283.80x = 8,671.84 × 3,631.16
  4. Step 4: Simplify right side
    6,283.80x = 31,488,838.53
  5. Step 5: Solve for x
    x = 31,488,838.53/6,283.80
  6. Step 6: Final answer
    x = 5,011.11

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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.