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Finding the Fourth Proportional to 4,490.92, 6,203.28 and 3,867.76

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Solution

The fourth proportional to 4,490.92, 6,203.28 and 3,867.76 is: 5,342.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,490.92 : 6,203.28 = 3,867.76 : x
  2. Step 2: Convert to fraction form
    4,490.92/6,203.28 = 3,867.76/x
  3. Step 3: Cross multiply
    4,490.92x = 6,203.28 × 3,867.76
  4. Step 4: Simplify right side
    4,490.92x = 23,992,798.25
  5. Step 5: Solve for x
    x = 23,992,798.25/4,490.92
  6. Step 6: Final answer
    x = 5,342.51

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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.