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Finding the Fourth Proportional to 61,691.14, 85,133.80 and 33,396.83

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Solution

The fourth proportional to 61,691.14, 85,133.80 and 33,396.83 is: 46,087.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,691.14 : 85,133.80 = 33,396.83 : x
  2. Step 2: Convert to fraction form
    61,691.14/85,133.80 = 33,396.83/x
  3. Step 3: Cross multiply
    61,691.14x = 85,133.80 × 33,396.83
  4. Step 4: Simplify right side
    61,691.14x = 2,843,198,981.18
  5. Step 5: Solve for x
    x = 2,843,198,981.18/61,691.14
  6. Step 6: Final answer
    x = 46,087.64

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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.