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Finding the Fourth Proportional to 2,266.76, 3,128.56 and 1,479.44

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Solution

The fourth proportional to 2,266.76, 3,128.56 and 1,479.44 is: 2,041.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.76 : 3,128.56 = 1,479.44 : x
  2. Step 2: Convert to fraction form
    2,266.76/3,128.56 = 1,479.44/x
  3. Step 3: Cross multiply
    2,266.76x = 3,128.56 × 1,479.44
  4. Step 4: Simplify right side
    2,266.76x = 4,628,516.81
  5. Step 5: Solve for x
    x = 4,628,516.81/2,266.76
  6. Step 6: Final answer
    x = 2,041.91

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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.