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Finding the Fourth Proportional to 34,789.75, 48,009.84 and 19,682.10

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Solution

The fourth proportional to 34,789.75, 48,009.84 and 19,682.10 is: 27,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,789.75 : 48,009.84 = 19,682.10 : x
  2. Step 2: Convert to fraction form
    34,789.75/48,009.84 = 19,682.10/x
  3. Step 3: Cross multiply
    34,789.75x = 48,009.84 × 19,682.10
  4. Step 4: Simplify right side
    34,789.75x = 944,934,471.86
  5. Step 5: Solve for x
    x = 944,934,471.86/34,789.75
  6. Step 6: Final answer
    x = 27,161.29

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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.