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Finding the Fourth Proportional to 17,909.01, 26,853.86 and 13,738.72

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Solution

The fourth proportional to 17,909.01, 26,853.86 and 13,738.72 is: 20,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,909.01 : 26,853.86 = 13,738.72 : x
  2. Step 2: Convert to fraction form
    17,909.01/26,853.86 = 13,738.72/x
  3. Step 3: Cross multiply
    17,909.01x = 26,853.86 × 13,738.72
  4. Step 4: Simplify right side
    17,909.01x = 368,937,713.42
  5. Step 5: Solve for x
    x = 368,937,713.42/17,909.01
  6. Step 6: Final answer
    x = 20,600.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.