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Finding the Fourth Proportional to 50,961.95, 76,442.87 and 19,797.20

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Solution

The fourth proportional to 50,961.95, 76,442.87 and 19,797.20 is: 29,695.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,961.95 : 76,442.87 = 19,797.20 : x
  2. Step 2: Convert to fraction form
    50,961.95/76,442.87 = 19,797.20/x
  3. Step 3: Cross multiply
    50,961.95x = 76,442.87 × 19,797.20
  4. Step 4: Simplify right side
    50,961.95x = 1,513,354,304.76
  5. Step 5: Solve for x
    x = 1,513,354,304.76/50,961.95
  6. Step 6: Final answer
    x = 29,695.77

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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.