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Finding the Fourth Proportional to 61,745.66, 85,208.72 and 33,451.42

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Solution

The fourth proportional to 61,745.66, 85,208.72 and 33,451.42 is: 46,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,745.66 : 85,208.72 = 33,451.42 : x
  2. Step 2: Convert to fraction form
    61,745.66/85,208.72 = 33,451.42/x
  3. Step 3: Cross multiply
    61,745.66x = 85,208.72 × 33,451.42
  4. Step 4: Simplify right side
    61,745.66x = 2,850,352,680.38
  5. Step 5: Solve for x
    x = 2,850,352,680.38/61,745.66
  6. Step 6: Final answer
    x = 46,162.80

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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.