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Finding the Fourth Proportional to 3,349.92, 5,054.88 and 3,215.07

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Solution

The fourth proportional to 3,349.92, 5,054.88 and 3,215.07 is: 4,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,349.92 : 5,054.88 = 3,215.07 : x
  2. Step 2: Convert to fraction form
    3,349.92/5,054.88 = 3,215.07/x
  3. Step 3: Cross multiply
    3,349.92x = 5,054.88 × 3,215.07
  4. Step 4: Simplify right side
    3,349.92x = 16,251,793.04
  5. Step 5: Solve for x
    x = 16,251,793.04/3,349.92
  6. Step 6: Final answer
    x = 4,851.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.