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Finding the Third Proportional to 861,257.25 and 1,854,130.50

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Solution

The third proportional to 861,257.25 and 1,854,130.50 is: 3,991,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,257.25 : 1,854,130.50 = 1,854,130.50 : x
  2. Step 2: Convert to fraction form
    861,257.25/1,854,130.50 = 1,854,130.50/x
  3. Step 3: Cross multiply
    861,257.25x = 1,854,130.50 × 1,854,130.50
  4. Step 4: Simplify right side
    861,257.25x = 3,437,799,911,030.25
  5. Step 5: Solve for x
    x = 3,437,799,911,030.25/861,257.25
  6. Step 6: Final answer
    x = 3,991,606.35

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.