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Finding the Fourth Proportional to 15,112.32, 22,675.32 and 7,713

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Solution

The fourth proportional to 15,112.32, 22,675.32 and 7,713 is: 11,572.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112.32 : 22,675.32 = 7,713 : x
  2. Step 2: Convert to fraction form
    15,112.32/22,675.32 = 7,713/x
  3. Step 3: Cross multiply
    15,112.32x = 22,675.32 × 7,713
  4. Step 4: Simplify right side
    15,112.32x = 174,894,743.16
  5. Step 5: Solve for x
    x = 174,894,743.16/15,112.32
  6. Step 6: Final answer
    x = 11,572.99

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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.