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Finding the Fourth Proportional to 19,695.31, 27,179.90 and 10,743.14

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Solution

The fourth proportional to 19,695.31, 27,179.90 and 10,743.14 is: 14,825.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.31 : 27,179.90 = 10,743.14 : x
  2. Step 2: Convert to fraction form
    19,695.31/27,179.90 = 10,743.14/x
  3. Step 3: Cross multiply
    19,695.31x = 27,179.90 × 10,743.14
  4. Step 4: Simplify right side
    19,695.31x = 291,997,372.52
  5. Step 5: Solve for x
    x = 291,997,372.52/19,695.31
  6. Step 6: Final answer
    x = 14,825.73

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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.