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Finding the Fourth Proportional to 50,115.50, 69,159.53 and 27,759.50

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Solution

The fourth proportional to 50,115.50, 69,159.53 and 27,759.50 is: 38,308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,115.50 : 69,159.53 = 27,759.50 : x
  2. Step 2: Convert to fraction form
    50,115.50/69,159.53 = 27,759.50/x
  3. Step 3: Cross multiply
    50,115.50x = 69,159.53 × 27,759.50
  4. Step 4: Simplify right side
    50,115.50x = 1,919,833,973.04
  5. Step 5: Solve for x
    x = 1,919,833,973.04/50,115.50
  6. Step 6: Final answer
    x = 38,308.19

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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.