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Finding the Fourth Proportional to 45,308.90, 67,987.80 and 26,625.44

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Solution

The fourth proportional to 45,308.90, 67,987.80 and 26,625.44 is: 39,952.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,308.90 : 67,987.80 = 26,625.44 : x
  2. Step 2: Convert to fraction form
    45,308.90/67,987.80 = 26,625.44/x
  3. Step 3: Cross multiply
    45,308.90x = 67,987.80 × 26,625.44
  4. Step 4: Simplify right side
    45,308.90x = 1,810,205,259.60
  5. Step 5: Solve for x
    x = 1,810,205,259.60/45,308.90
  6. Step 6: Final answer
    x = 39,952.53

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1.5x scale

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.