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Finding the Fourth Proportional to 61,625.40, 85,042.96 and 33,331

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Solution

The fourth proportional to 61,625.40, 85,042.96 and 33,331 is: 45,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,625.40 : 85,042.96 = 33,331 : x
  2. Step 2: Convert to fraction form
    61,625.40/85,042.96 = 33,331/x
  3. Step 3: Cross multiply
    61,625.40x = 85,042.96 × 33,331
  4. Step 4: Simplify right side
    61,625.40x = 2,834,566,899.76
  5. Step 5: Solve for x
    x = 2,834,566,899.76/61,625.40
  6. Step 6: Final answer
    x = 45,996.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.