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Finding the Fourth Proportional to 72,378.82, 108,578.70 and 22,462.95

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Solution

The fourth proportional to 72,378.82, 108,578.70 and 22,462.95 is: 33,697.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,378.82 : 108,578.70 = 22,462.95 : x
  2. Step 2: Convert to fraction form
    72,378.82/108,578.70 = 22,462.95/x
  3. Step 3: Cross multiply
    72,378.82x = 108,578.70 × 22,462.95
  4. Step 4: Simplify right side
    72,378.82x = 2,438,997,463.38
  5. Step 5: Solve for x
    x = 2,438,997,463.38/72,378.82
  6. Step 6: Final answer
    x = 33,697.67

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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.