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Finding the Fourth Proportional to 17,912.77, 24,720.46 and 9,955.13

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Solution

The fourth proportional to 17,912.77, 24,720.46 and 9,955.13 is: 13,738.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,912.77 : 24,720.46 = 9,955.13 : x
  2. Step 2: Convert to fraction form
    17,912.77/24,720.46 = 9,955.13/x
  3. Step 3: Cross multiply
    17,912.77x = 24,720.46 × 9,955.13
  4. Step 4: Simplify right side
    17,912.77x = 246,095,244.47
  5. Step 5: Solve for x
    x = 246,095,244.47/17,912.77
  6. Step 6: Final answer
    x = 13,738.54

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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.