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Finding the Fourth Proportional to 19,659.88, 27,104.10 and 19,048.36

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Solution

The fourth proportional to 19,659.88, 27,104.10 and 19,048.36 is: 26,261.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.88 : 27,104.10 = 19,048.36 : x
  2. Step 2: Convert to fraction form
    19,659.88/27,104.10 = 19,048.36/x
  3. Step 3: Cross multiply
    19,659.88x = 27,104.10 × 19,048.36
  4. Step 4: Simplify right side
    19,659.88x = 516,288,654.28
  5. Step 5: Solve for x
    x = 516,288,654.28/19,659.88
  6. Step 6: Final answer
    x = 26,261.03

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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.