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Finding the Fourth Proportional to 27,357.72, 37,702.08 and 19,791.22

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Solution

The fourth proportional to 27,357.72, 37,702.08 and 19,791.22 is: 27,274.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,357.72 : 37,702.08 = 19,791.22 : x
  2. Step 2: Convert to fraction form
    27,357.72/37,702.08 = 19,791.22/x
  3. Step 3: Cross multiply
    27,357.72x = 37,702.08 × 19,791.22
  4. Step 4: Simplify right side
    27,357.72x = 746,170,159.74
  5. Step 5: Solve for x
    x = 746,170,159.74/27,357.72
  6. Step 6: Final answer
    x = 27,274.57

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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.