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Finding the Fourth Proportional to 17,600.79, 26,400.94 and 4,453.08

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Solution

The fourth proportional to 17,600.79, 26,400.94 and 4,453.08 is: 6,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,600.79 : 26,400.94 = 4,453.08 : x
  2. Step 2: Convert to fraction form
    17,600.79/26,400.94 = 4,453.08/x
  3. Step 3: Cross multiply
    17,600.79x = 26,400.94 × 4,453.08
  4. Step 4: Simplify right side
    17,600.79x = 117,565,387.76
  5. Step 5: Solve for x
    x = 117,565,387.76/17,600.79
  6. Step 6: Final answer
    x = 6,679.55

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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.