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Finding the Fourth Proportional to 59,691.78, 89,537.22 and 18,138.78

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Solution

The fourth proportional to 59,691.78, 89,537.22 and 18,138.78 is: 27,208.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,691.78 : 89,537.22 = 18,138.78 : x
  2. Step 2: Convert to fraction form
    59,691.78/89,537.22 = 18,138.78/x
  3. Step 3: Cross multiply
    59,691.78x = 89,537.22 × 18,138.78
  4. Step 4: Simplify right side
    59,691.78x = 1,624,095,935.39
  5. Step 5: Solve for x
    x = 1,624,095,935.39/59,691.78
  6. Step 6: Final answer
    x = 27,208.03

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1.5x scale

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.