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Finding the Fourth Proportional to 40,625.75, 60,938.82 and 10,639.93

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Solution

The fourth proportional to 40,625.75, 60,938.82 and 10,639.93 is: 15,959.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,625.75 : 60,938.82 = 10,639.93 : x
  2. Step 2: Convert to fraction form
    40,625.75/60,938.82 = 10,639.93/x
  3. Step 3: Cross multiply
    40,625.75x = 60,938.82 × 10,639.93
  4. Step 4: Simplify right side
    40,625.75x = 648,384,626.74
  5. Step 5: Solve for x
    x = 648,384,626.74/40,625.75
  6. Step 6: Final answer
    x = 15,959.94

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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.