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Finding the Fourth Proportional to 77,959.42, 116,938.11 and 18,794.62

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Solution

The fourth proportional to 77,959.42, 116,938.11 and 18,794.62 is: 28,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,959.42 : 116,938.11 = 18,794.62 : x
  2. Step 2: Convert to fraction form
    77,959.42/116,938.11 = 18,794.62/x
  3. Step 3: Cross multiply
    77,959.42x = 116,938.11 × 18,794.62
  4. Step 4: Simplify right side
    77,959.42x = 2,197,807,340.97
  5. Step 5: Solve for x
    x = 2,197,807,340.97/77,959.42
  6. Step 6: Final answer
    x = 28,191.68

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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.