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Finding the Third Proportional to 1,570 and 3,348.50

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Solution

The third proportional to 1,570 and 3,348.50 is: 7,141.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570 : 3,348.50 = 3,348.50 : x
  2. Step 2: Convert to fraction form
    1,570/3,348.50 = 3,348.50/x
  3. Step 3: Cross multiply
    1,570x = 3,348.50 × 3,348.50
  4. Step 4: Simplify right side
    1,570x = 11,212,452.25
  5. Step 5: Solve for x
    x = 11,212,452.25/1,570
  6. Step 6: Final answer
    x = 7,141.69

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.