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Finding the Third Proportional to 1,036.38 and 1,407.13

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Solution

The third proportional to 1,036.38 and 1,407.13 is: 1,910.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.38 : 1,407.13 = 1,407.13 : x
  2. Step 2: Convert to fraction form
    1,036.38/1,407.13 = 1,407.13/x
  3. Step 3: Cross multiply
    1,036.38x = 1,407.13 × 1,407.13
  4. Step 4: Simplify right side
    1,036.38x = 1,980,000.77
  5. Step 5: Solve for x
    x = 1,980,000.77/1,036.38
  6. Step 6: Final answer
    x = 1,910.51

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.