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Finding the Fourth Proportional to 60,728.88, 83,813.16 and 35,578.38

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Solution

The fourth proportional to 60,728.88, 83,813.16 and 35,578.38 is: 49,102.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,728.88 : 83,813.16 = 35,578.38 : x
  2. Step 2: Convert to fraction form
    60,728.88/83,813.16 = 35,578.38/x
  3. Step 3: Cross multiply
    60,728.88x = 83,813.16 × 35,578.38
  4. Step 4: Simplify right side
    60,728.88x = 2,981,936,455.48
  5. Step 5: Solve for x
    x = 2,981,936,455.48/60,728.88
  6. Step 6: Final answer
    x = 49,102.44

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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.