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Finding the Third Proportional to 1,342 and 2,052.50

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Solution

The third proportional to 1,342 and 2,052.50 is: 3,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342 : 2,052.50 = 2,052.50 : x
  2. Step 2: Convert to fraction form
    1,342/2,052.50 = 2,052.50/x
  3. Step 3: Cross multiply
    1,342x = 2,052.50 × 2,052.50
  4. Step 4: Simplify right side
    1,342x = 4,212,756.25
  5. Step 5: Solve for x
    x = 4,212,756.25/1,342
  6. Step 6: Final answer
    x = 3,139.16

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.