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Finding the Fourth Proportional to 17,913.73, 24,720.77 and 9,955.80

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Solution

The fourth proportional to 17,913.73, 24,720.77 and 9,955.80 is: 13,738.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,913.73 : 24,720.77 = 9,955.80 : x
  2. Step 2: Convert to fraction form
    17,913.73/24,720.77 = 9,955.80/x
  3. Step 3: Cross multiply
    17,913.73x = 24,720.77 × 9,955.80
  4. Step 4: Simplify right side
    17,913.73x = 246,115,041.97
  5. Step 5: Solve for x
    x = 246,115,041.97/17,913.73
  6. Step 6: Final answer
    x = 13,738.91

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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.