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Finding the Fourth Proportional to 17,661.93, 26,619.90 and 15,226.16

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Solution

The fourth proportional to 17,661.93, 26,619.90 and 15,226.16 is: 22,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,661.93 : 26,619.90 = 15,226.16 : x
  2. Step 2: Convert to fraction form
    17,661.93/26,619.90 = 15,226.16/x
  3. Step 3: Cross multiply
    17,661.93x = 26,619.90 × 15,226.16
  4. Step 4: Simplify right side
    17,661.93x = 405,318,723.48
  5. Step 5: Solve for x
    x = 405,318,723.48/17,661.93
  6. Step 6: Final answer
    x = 22,948.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.