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Finding the Fourth Proportional to 75,074.73, 112,608.84 and 30,686.73

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Solution

The fourth proportional to 75,074.73, 112,608.84 and 30,686.73 is: 46,028.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,074.73 : 112,608.84 = 30,686.73 : x
  2. Step 2: Convert to fraction form
    75,074.73/112,608.84 = 30,686.73/x
  3. Step 3: Cross multiply
    75,074.73x = 112,608.84 × 30,686.73
  4. Step 4: Simplify right side
    75,074.73x = 3,455,597,068.69
  5. Step 5: Solve for x
    x = 3,455,597,068.69/75,074.73
  6. Step 6: Final answer
    x = 46,028.76

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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.