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Finding the Fourth Proportional to 30,443.73, 45,657.63 and 9,091.42

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Solution

The fourth proportional to 30,443.73, 45,657.63 and 9,091.42 is: 13,634.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.73 : 45,657.63 = 9,091.42 : x
  2. Step 2: Convert to fraction form
    30,443.73/45,657.63 = 9,091.42/x
  3. Step 3: Cross multiply
    30,443.73x = 45,657.63 × 9,091.42
  4. Step 4: Simplify right side
    30,443.73x = 415,092,690.53
  5. Step 5: Solve for x
    x = 415,092,690.53/30,443.73
  6. Step 6: Final answer
    x = 13,634.75

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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.