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Finding the Fourth Proportional to 22,245.81, 33,368.76 and 7,454.78

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Solution

The fourth proportional to 22,245.81, 33,368.76 and 7,454.78 is: 11,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,245.81 : 33,368.76 = 7,454.78 : x
  2. Step 2: Convert to fraction form
    22,245.81/33,368.76 = 7,454.78/x
  3. Step 3: Cross multiply
    22,245.81x = 33,368.76 × 7,454.78
  4. Step 4: Simplify right side
    22,245.81x = 248,756,910.66
  5. Step 5: Solve for x
    x = 248,756,910.66/22,245.81
  6. Step 6: Final answer
    x = 11,182.19

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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.