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Finding the Fourth Proportional to 75,213.63, 112,701.78 and 27,763.43

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Solution

The fourth proportional to 75,213.63, 112,701.78 and 27,763.43 is: 41,601.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,213.63 : 112,701.78 = 27,763.43 : x
  2. Step 2: Convert to fraction form
    75,213.63/112,701.78 = 27,763.43/x
  3. Step 3: Cross multiply
    75,213.63x = 112,701.78 × 27,763.43
  4. Step 4: Simplify right side
    75,213.63x = 3,128,987,979.91
  5. Step 5: Solve for x
    x = 3,128,987,979.91/75,213.63
  6. Step 6: Final answer
    x = 41,601.34

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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.