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Finding the Fourth Proportional to 55,846.80, 77,067.72 and 30,695.76

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Solution

The fourth proportional to 55,846.80, 77,067.72 and 30,695.76 is: 42,359.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,846.80 : 77,067.72 = 30,695.76 : x
  2. Step 2: Convert to fraction form
    55,846.80/77,067.72 = 30,695.76/x
  3. Step 3: Cross multiply
    55,846.80x = 77,067.72 × 30,695.76
  4. Step 4: Simplify right side
    55,846.80x = 2,365,652,236.87
  5. Step 5: Solve for x
    x = 2,365,652,236.87/55,846.80
  6. Step 6: Final answer
    x = 42,359.67

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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.