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Finding the Fourth Proportional to 22,415.86, 33,628.21 and 6,621.16

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Solution

The fourth proportional to 22,415.86, 33,628.21 and 6,621.16 is: 9,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,415.86 : 33,628.21 = 6,621.16 : x
  2. Step 2: Convert to fraction form
    22,415.86/33,628.21 = 6,621.16/x
  3. Step 3: Cross multiply
    22,415.86x = 33,628.21 × 6,621.16
  4. Step 4: Simplify right side
    22,415.86x = 222,657,590.78
  5. Step 5: Solve for x
    x = 222,657,590.78/22,415.86
  6. Step 6: Final answer
    x = 9,933.04

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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.