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Finding the Fourth Proportional to 15,112, 22,669.28 and 4,168

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Solution

The fourth proportional to 15,112, 22,669.28 and 4,168 is: 6,252.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112 : 22,669.28 = 4,168 : x
  2. Step 2: Convert to fraction form
    15,112/22,669.28 = 4,168/x
  3. Step 3: Cross multiply
    15,112x = 22,669.28 × 4,168
  4. Step 4: Simplify right side
    15,112x = 94,485,559.04
  5. Step 5: Solve for x
    x = 94,485,559.04/15,112
  6. Step 6: Final answer
    x = 6,252.35

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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.