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Finding the Fourth Proportional to 61,920.25, 85,476.11 and 41,804.38

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Solution

The fourth proportional to 61,920.25, 85,476.11 and 41,804.38 is: 57,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,920.25 : 85,476.11 = 41,804.38 : x
  2. Step 2: Convert to fraction form
    61,920.25/85,476.11 = 41,804.38/x
  3. Step 3: Cross multiply
    61,920.25x = 85,476.11 × 41,804.38
  4. Step 4: Simplify right side
    61,920.25x = 3,573,275,944.80
  5. Step 5: Solve for x
    x = 3,573,275,944.80/61,920.25
  6. Step 6: Final answer
    x = 57,707.71

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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.