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Finding the Fourth Proportional to 60,800.46, 83,838.48 and 39,540.30

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Solution

The fourth proportional to 60,800.46, 83,838.48 and 39,540.30 is: 54,522.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,800.46 : 83,838.48 = 39,540.30 : x
  2. Step 2: Convert to fraction form
    60,800.46/83,838.48 = 39,540.30/x
  3. Step 3: Cross multiply
    60,800.46x = 83,838.48 × 39,540.30
  4. Step 4: Simplify right side
    60,800.46x = 3,314,998,650.74
  5. Step 5: Solve for x
    x = 3,314,998,650.74/60,800.46
  6. Step 6: Final answer
    x = 54,522.59

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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.