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Finding the Fourth Proportional to 60,976.03, 91,480.47 and 31,377.73

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Solution

The fourth proportional to 60,976.03, 91,480.47 and 31,377.73 is: 47,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,976.03 : 91,480.47 = 31,377.73 : x
  2. Step 2: Convert to fraction form
    60,976.03/91,480.47 = 31,377.73/x
  3. Step 3: Cross multiply
    60,976.03x = 91,480.47 × 31,377.73
  4. Step 4: Simplify right side
    60,976.03x = 2,870,449,487.93
  5. Step 5: Solve for x
    x = 2,870,449,487.93/60,976.03
  6. Step 6: Final answer
    x = 47,075.05

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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.