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Finding the Fourth Proportional to 58,839, 88,258.50 and 17,286

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Solution

The fourth proportional to 58,839, 88,258.50 and 17,286 is: 25,929

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,839 : 88,258.50 = 17,286 : x
  2. Step 2: Convert to fraction form
    58,839/88,258.50 = 17,286/x
  3. Step 3: Cross multiply
    58,839x = 88,258.50 × 17,286
  4. Step 4: Simplify right side
    58,839x = 1,525,636,431
  5. Step 5: Solve for x
    x = 1,525,636,431/58,839
  6. Step 6: Final answer
    x = 25,929

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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.