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Finding the Fourth Proportional to 22,290, 33,437.16 and 7,502.64

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Solution

The fourth proportional to 22,290, 33,437.16 and 7,502.64 is: 11,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,290 : 33,437.16 = 7,502.64 : x
  2. Step 2: Convert to fraction form
    22,290/33,437.16 = 7,502.64/x
  3. Step 3: Cross multiply
    22,290x = 33,437.16 × 7,502.64
  4. Step 4: Simplify right side
    22,290x = 250,866,974.10
  5. Step 5: Solve for x
    x = 250,866,974.10/22,290
  6. Step 6: Final answer
    x = 11,254.69

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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.