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Finding the Fourth Proportional to 19,702.52, 27,190.52 and 11,319.56

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Solution

The fourth proportional to 19,702.52, 27,190.52 and 11,319.56 is: 15,621.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,702.52 : 27,190.52 = 11,319.56 : x
  2. Step 2: Convert to fraction form
    19,702.52/27,190.52 = 11,319.56/x
  3. Step 3: Cross multiply
    19,702.52x = 27,190.52 × 11,319.56
  4. Step 4: Simplify right side
    19,702.52x = 307,784,722.57
  5. Step 5: Solve for x
    x = 307,784,722.57/19,702.52
  6. Step 6: Final answer
    x = 15,621.59

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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.