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Finding the Fourth Proportional to 48,875.67, 73,679.76 and 45,620.67

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Solution

The fourth proportional to 48,875.67, 73,679.76 and 45,620.67 is: 68,772.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,875.67 : 73,679.76 = 45,620.67 : x
  2. Step 2: Convert to fraction form
    48,875.67/73,679.76 = 45,620.67/x
  3. Step 3: Cross multiply
    48,875.67x = 73,679.76 × 45,620.67
  4. Step 4: Simplify right side
    48,875.67x = 3,361,320,016.64
  5. Step 5: Solve for x
    x = 3,361,320,016.64/48,875.67
  6. Step 6: Final answer
    x = 68,772.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.