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Finding the Fourth Proportional to 47,338.70, 65,280.75 and 36,724.46

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Solution

The fourth proportional to 47,338.70, 65,280.75 and 36,724.46 is: 50,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,338.70 : 65,280.75 = 36,724.46 : x
  2. Step 2: Convert to fraction form
    47,338.70/65,280.75 = 36,724.46/x
  3. Step 3: Cross multiply
    47,338.70x = 65,280.75 × 36,724.46
  4. Step 4: Simplify right side
    47,338.70x = 2,397,400,292.15
  5. Step 5: Solve for x
    x = 2,397,400,292.15/47,338.70
  6. Step 6: Final answer
    x = 50,643.56

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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.