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Finding the Third Proportional to 1,570.78 and 2,351.53

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Solution

The third proportional to 1,570.78 and 2,351.53 is: 3,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570.78 : 2,351.53 = 2,351.53 : x
  2. Step 2: Convert to fraction form
    1,570.78/2,351.53 = 2,351.53/x
  3. Step 3: Cross multiply
    1,570.78x = 2,351.53 × 2,351.53
  4. Step 4: Simplify right side
    1,570.78x = 5,529,699.22
  5. Step 5: Solve for x
    x = 5,529,699.22/1,570.78
  6. Step 6: Final answer
    x = 3,520.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.