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Finding the Fourth Proportional to 60,636.80, 83,680.86 and 35,143.22

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Solution

The fourth proportional to 60,636.80, 83,680.86 and 35,143.22 is: 48,498.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,636.80 : 83,680.86 = 35,143.22 : x
  2. Step 2: Convert to fraction form
    60,636.80/83,680.86 = 35,143.22/x
  3. Step 3: Cross multiply
    60,636.80x = 83,680.86 × 35,143.22
  4. Step 4: Simplify right side
    60,636.80x = 2,940,814,872.77
  5. Step 5: Solve for x
    x = 2,940,814,872.77/60,636.80
  6. Step 6: Final answer
    x = 48,498.85

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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.