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Finding the Fourth Proportional to 6,338.48, 8,750.16 and 3,981.92

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Solution

The fourth proportional to 6,338.48, 8,750.16 and 3,981.92 is: 5,496.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,338.48 : 8,750.16 = 3,981.92 : x
  2. Step 2: Convert to fraction form
    6,338.48/8,750.16 = 3,981.92/x
  3. Step 3: Cross multiply
    6,338.48x = 8,750.16 × 3,981.92
  4. Step 4: Simplify right side
    6,338.48x = 34,842,437.11
  5. Step 5: Solve for x
    x = 34,842,437.11/6,338.48
  6. Step 6: Final answer
    x = 5,496.97

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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.