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Finding the Third Proportional to 1,432.13 and 2,160.56

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Solution

The third proportional to 1,432.13 and 2,160.56 is: 3,259.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.13 : 2,160.56 = 2,160.56 : x
  2. Step 2: Convert to fraction form
    1,432.13/2,160.56 = 2,160.56/x
  3. Step 3: Cross multiply
    1,432.13x = 2,160.56 × 2,160.56
  4. Step 4: Simplify right side
    1,432.13x = 4,668,030.32
  5. Step 5: Solve for x
    x = 4,668,030.32/1,432.13
  6. Step 6: Final answer
    x = 3,259.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.