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Finding the Fourth Proportional to 67,599, 101,398.50 and 18,351

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Solution

The fourth proportional to 67,599, 101,398.50 and 18,351 is: 27,526.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,599 : 101,398.50 = 18,351 : x
  2. Step 2: Convert to fraction form
    67,599/101,398.50 = 18,351/x
  3. Step 3: Cross multiply
    67,599x = 101,398.50 × 18,351
  4. Step 4: Simplify right side
    67,599x = 1,860,763,873.50
  5. Step 5: Solve for x
    x = 1,860,763,873.50/67,599
  6. Step 6: Final answer
    x = 27,526.50

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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.