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Finding the Fourth Proportional to 62,767.63, 86,578.63 and 40,113.55

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Solution

The fourth proportional to 62,767.63, 86,578.63 and 40,113.55 is: 55,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,767.63 : 86,578.63 = 40,113.55 : x
  2. Step 2: Convert to fraction form
    62,767.63/86,578.63 = 40,113.55/x
  3. Step 3: Cross multiply
    62,767.63x = 86,578.63 × 40,113.55
  4. Step 4: Simplify right side
    62,767.63x = 3,472,976,203.44
  5. Step 5: Solve for x
    x = 3,472,976,203.44/62,767.63
  6. Step 6: Final answer
    x = 55,330.69

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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.