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Finding the Fourth Proportional to 22,260.42, 33,390.63 and 6,678.45

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Solution

The fourth proportional to 22,260.42, 33,390.63 and 6,678.45 is: 10,017.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,260.42 : 33,390.63 = 6,678.45 : x
  2. Step 2: Convert to fraction form
    22,260.42/33,390.63 = 6,678.45/x
  3. Step 3: Cross multiply
    22,260.42x = 33,390.63 × 6,678.45
  4. Step 4: Simplify right side
    22,260.42x = 222,997,652.92
  5. Step 5: Solve for x
    x = 222,997,652.92/22,260.42
  6. Step 6: Final answer
    x = 10,017.68

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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.