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Finding the Fourth Proportional to 22,415.71, 33,613.83 and 7,620.65

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Solution

The fourth proportional to 22,415.71, 33,613.83 and 7,620.65 is: 11,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,415.71 : 33,613.83 = 7,620.65 : x
  2. Step 2: Convert to fraction form
    22,415.71/33,613.83 = 7,620.65/x
  3. Step 3: Cross multiply
    22,415.71x = 33,613.83 × 7,620.65
  4. Step 4: Simplify right side
    22,415.71x = 256,159,233.59
  5. Step 5: Solve for x
    x = 256,159,233.59/22,415.71
  6. Step 6: Final answer
    x = 11,427.67

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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.