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Finding the Fourth Proportional to 2,256, 3,113.28 and 1,471.38

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Solution

The fourth proportional to 2,256, 3,113.28 and 1,471.38 is: 2,030.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256 : 3,113.28 = 1,471.38 : x
  2. Step 2: Convert to fraction form
    2,256/3,113.28 = 1,471.38/x
  3. Step 3: Cross multiply
    2,256x = 3,113.28 × 1,471.38
  4. Step 4: Simplify right side
    2,256x = 4,580,817.93
  5. Step 5: Solve for x
    x = 4,580,817.93/2,256
  6. Step 6: Final answer
    x = 2,030.50

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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.