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Finding the Third Proportional to 1,098,501.75 and 1,663,243.88

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Solution

The third proportional to 1,098,501.75 and 1,663,243.88 is: 2,518,321.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,501.75 : 1,663,243.88 = 1,663,243.88 : x
  2. Step 2: Convert to fraction form
    1,098,501.75/1,663,243.88 = 1,663,243.88/x
  3. Step 3: Cross multiply
    1,098,501.75x = 1,663,243.88 × 1,663,243.88
  4. Step 4: Simplify right side
    1,098,501.75x = 2,766,380,187,725.02
  5. Step 5: Solve for x
    x = 2,766,380,187,725.02/1,098,501.75
  6. Step 6: Final answer
    x = 2,518,321.15

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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.