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Finding the Fourth Proportional to 15,751.66, 21,736.62 and 9,032.62

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Solution

The fourth proportional to 15,751.66, 21,736.62 and 9,032.62 is: 12,464.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.66 : 21,736.62 = 9,032.62 : x
  2. Step 2: Convert to fraction form
    15,751.66/21,736.62 = 9,032.62/x
  3. Step 3: Cross multiply
    15,751.66x = 21,736.62 × 9,032.62
  4. Step 4: Simplify right side
    15,751.66x = 196,338,628.54
  5. Step 5: Solve for x
    x = 196,338,628.54/15,751.66
  6. Step 6: Final answer
    x = 12,464.63

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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.