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Finding the Fourth Proportional to 2,695.72, 3,713.70 and 2,220.52

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Solution

The fourth proportional to 2,695.72, 3,713.70 and 2,220.52 is: 3,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.72 : 3,713.70 = 2,220.52 : x
  2. Step 2: Convert to fraction form
    2,695.72/3,713.70 = 2,220.52/x
  3. Step 3: Cross multiply
    2,695.72x = 3,713.70 × 2,220.52
  4. Step 4: Simplify right side
    2,695.72x = 8,246,345.12
  5. Step 5: Solve for x
    x = 8,246,345.12/2,695.72
  6. Step 6: Final answer
    x = 3,059.05

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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.