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Finding the Fourth Proportional to 18,317.52, 27,476.28 and 6,628

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Solution

The fourth proportional to 18,317.52, 27,476.28 and 6,628 is: 9,942

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317.52 : 27,476.28 = 6,628 : x
  2. Step 2: Convert to fraction form
    18,317.52/27,476.28 = 6,628/x
  3. Step 3: Cross multiply
    18,317.52x = 27,476.28 × 6,628
  4. Step 4: Simplify right side
    18,317.52x = 182,112,783.84
  5. Step 5: Solve for x
    x = 182,112,783.84/18,317.52
  6. Step 6: Final answer
    x = 9,942

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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.