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Finding the Fourth Proportional to 22,179.98, 33,275.22 and 7,187.08

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Solution

The fourth proportional to 22,179.98, 33,275.22 and 7,187.08 is: 10,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,179.98 : 33,275.22 = 7,187.08 : x
  2. Step 2: Convert to fraction form
    22,179.98/33,275.22 = 7,187.08/x
  3. Step 3: Cross multiply
    22,179.98x = 33,275.22 × 7,187.08
  4. Step 4: Simplify right side
    22,179.98x = 239,151,465.85
  5. Step 5: Solve for x
    x = 239,151,465.85/22,179.98
  6. Step 6: Final answer
    x = 10,782.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.