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Finding the Fourth Proportional to 2,693.12, 4,019.04 and 2,660.48

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Solution

The fourth proportional to 2,693.12, 4,019.04 and 2,660.48 is: 3,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.12 : 4,019.04 = 2,660.48 : x
  2. Step 2: Convert to fraction form
    2,693.12/4,019.04 = 2,660.48/x
  3. Step 3: Cross multiply
    2,693.12x = 4,019.04 × 2,660.48
  4. Step 4: Simplify right side
    2,693.12x = 10,692,575.54
  5. Step 5: Solve for x
    x = 10,692,575.54/2,693.12
  6. Step 6: Final answer
    x = 3,970.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.