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Finding the Fourth Proportional to 6,248.66, 8,621.72 and 3,730.28

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Solution

The fourth proportional to 6,248.66, 8,621.72 and 3,730.28 is: 5,146.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,248.66 : 8,621.72 = 3,730.28 : x
  2. Step 2: Convert to fraction form
    6,248.66/8,621.72 = 3,730.28/x
  3. Step 3: Cross multiply
    6,248.66x = 8,621.72 × 3,730.28
  4. Step 4: Simplify right side
    6,248.66x = 32,161,429.68
  5. Step 5: Solve for x
    x = 32,161,429.68/6,248.66
  6. Step 6: Final answer
    x = 5,146.93

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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.