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Finding the Fourth Proportional to 2,656.70, 3,661.52 and 2,351.18

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Solution

The fourth proportional to 2,656.70, 3,661.52 and 2,351.18 is: 3,240.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.70 : 3,661.52 = 2,351.18 : x
  2. Step 2: Convert to fraction form
    2,656.70/3,661.52 = 2,351.18/x
  3. Step 3: Cross multiply
    2,656.70x = 3,661.52 × 2,351.18
  4. Step 4: Simplify right side
    2,656.70x = 8,608,892.59
  5. Step 5: Solve for x
    x = 8,608,892.59/2,656.70
  6. Step 6: Final answer
    x = 3,240.45

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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.