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Finding the Fourth Proportional to 22,093.65, 30,495.96 and 13,143.96

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Solution

The fourth proportional to 22,093.65, 30,495.96 and 13,143.96 is: 18,142.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,093.65 : 30,495.96 = 13,143.96 : x
  2. Step 2: Convert to fraction form
    22,093.65/30,495.96 = 13,143.96/x
  3. Step 3: Cross multiply
    22,093.65x = 30,495.96 × 13,143.96
  4. Step 4: Simplify right side
    22,093.65x = 400,837,678.40
  5. Step 5: Solve for x
    x = 400,837,678.40/22,093.65
  6. Step 6: Final answer
    x = 18,142.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.