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Finding the Fourth Proportional to 40,243.73, 60,366.73 and 10,661.57

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Solution

The fourth proportional to 40,243.73, 60,366.73 and 10,661.57 is: 15,992.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,243.73 : 60,366.73 = 10,661.57 : x
  2. Step 2: Convert to fraction form
    40,243.73/60,366.73 = 10,661.57/x
  3. Step 3: Cross multiply
    40,243.73x = 60,366.73 × 10,661.57
  4. Step 4: Simplify right side
    40,243.73x = 643,604,117.57
  5. Step 5: Solve for x
    x = 643,604,117.57/40,243.73
  6. Step 6: Final answer
    x = 15,992.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.