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Finding the Fourth Proportional to 60,698.96, 83,734.79 and 40,560.78

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Solution

The fourth proportional to 60,698.96, 83,734.79 and 40,560.78 is: 55,953.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,698.96 : 83,734.79 = 40,560.78 : x
  2. Step 2: Convert to fraction form
    60,698.96/83,734.79 = 40,560.78/x
  3. Step 3: Cross multiply
    60,698.96x = 83,734.79 × 40,560.78
  4. Step 4: Simplify right side
    60,698.96x = 3,396,348,192.73
  5. Step 5: Solve for x
    x = 3,396,348,192.73/60,698.96
  6. Step 6: Final answer
    x = 55,953.98

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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.