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Finding the Third Proportional to 1,248 and 1,957.75

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Solution

The third proportional to 1,248 and 1,957.75 is: 3,071.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248 : 1,957.75 = 1,957.75 : x
  2. Step 2: Convert to fraction form
    1,248/1,957.75 = 1,957.75/x
  3. Step 3: Cross multiply
    1,248x = 1,957.75 × 1,957.75
  4. Step 4: Simplify right side
    1,248x = 3,832,785.06
  5. Step 5: Solve for x
    x = 3,832,785.06/1,248
  6. Step 6: Final answer
    x = 3,071.14

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.