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Finding the Fourth Proportional to 16,797.78, 23,181.93 and 9,726.66

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Solution

The fourth proportional to 16,797.78, 23,181.93 and 9,726.66 is: 13,423.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,797.78 : 23,181.93 = 9,726.66 : x
  2. Step 2: Convert to fraction form
    16,797.78/23,181.93 = 9,726.66/x
  3. Step 3: Cross multiply
    16,797.78x = 23,181.93 × 9,726.66
  4. Step 4: Simplify right side
    16,797.78x = 225,482,751.25
  5. Step 5: Solve for x
    x = 225,482,751.25/16,797.78
  6. Step 6: Final answer
    x = 13,423.37

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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.