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Finding the Fourth Proportional to 33,156, 45,755.28 and 19,013.52

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Solution

The fourth proportional to 33,156, 45,755.28 and 19,013.52 is: 26,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,156 : 45,755.28 = 19,013.52 : x
  2. Step 2: Convert to fraction form
    33,156/45,755.28 = 19,013.52/x
  3. Step 3: Cross multiply
    33,156x = 45,755.28 × 19,013.52
  4. Step 4: Simplify right side
    33,156x = 869,968,931.39
  5. Step 5: Solve for x
    x = 869,968,931.39/33,156
  6. Step 6: Final answer
    x = 26,238.66

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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.