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Finding the Fourth Proportional to 7,347.92, 11,016.12 and 3,883.28

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Solution

The fourth proportional to 7,347.92, 11,016.12 and 3,883.28 is: 5,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.92 : 11,016.12 = 3,883.28 : x
  2. Step 2: Convert to fraction form
    7,347.92/11,016.12 = 3,883.28/x
  3. Step 3: Cross multiply
    7,347.92x = 11,016.12 × 3,883.28
  4. Step 4: Simplify right side
    7,347.92x = 42,778,678.47
  5. Step 5: Solve for x
    x = 42,778,678.47/7,347.92
  6. Step 6: Final answer
    x = 5,821.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.