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Finding the Fourth Proportional to 17,217.16, 23,759.93 and 16,621.20

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Solution

The fourth proportional to 17,217.16, 23,759.93 and 16,621.20 is: 22,937.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,217.16 : 23,759.93 = 16,621.20 : x
  2. Step 2: Convert to fraction form
    17,217.16/23,759.93 = 16,621.20/x
  3. Step 3: Cross multiply
    17,217.16x = 23,759.93 × 16,621.20
  4. Step 4: Simplify right side
    17,217.16x = 394,918,590.07
  5. Step 5: Solve for x
    x = 394,918,590.07/17,217.16
  6. Step 6: Final answer
    x = 22,937.50

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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.