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Finding the Fourth Proportional to 60,692, 91,053.36 and 16,916

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Solution

The fourth proportional to 60,692, 91,053.36 and 16,916 is: 25,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,692 : 91,053.36 = 16,916 : x
  2. Step 2: Convert to fraction form
    60,692/91,053.36 = 16,916/x
  3. Step 3: Cross multiply
    60,692x = 91,053.36 × 16,916
  4. Step 4: Simplify right side
    60,692x = 1,540,258,637.76
  5. Step 5: Solve for x
    x = 1,540,258,637.76/60,692
  6. Step 6: Final answer
    x = 25,378.28

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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.