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Finding the Fourth Proportional to 36,921, 55,404.54 and 15,033

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Solution

The fourth proportional to 36,921, 55,404.54 and 15,033 is: 22,558.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,921 : 55,404.54 = 15,033 : x
  2. Step 2: Convert to fraction form
    36,921/55,404.54 = 15,033/x
  3. Step 3: Cross multiply
    36,921x = 55,404.54 × 15,033
  4. Step 4: Simplify right side
    36,921x = 832,896,449.82
  5. Step 5: Solve for x
    x = 832,896,449.82/36,921
  6. Step 6: Final answer
    x = 22,558.88

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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.