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Finding the Fourth Proportional to 2,250.76, 3,376.12 and 711.76

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Solution

The fourth proportional to 2,250.76, 3,376.12 and 711.76 is: 1,067.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,250.76 : 3,376.12 = 711.76 : x
  2. Step 2: Convert to fraction form
    2,250.76/3,376.12 = 711.76/x
  3. Step 3: Cross multiply
    2,250.76x = 3,376.12 × 711.76
  4. Step 4: Simplify right side
    2,250.76x = 2,402,987.17
  5. Step 5: Solve for x
    x = 2,402,987.17/2,250.76
  6. Step 6: Final answer
    x = 1,067.63

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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.