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Finding the Fourth Proportional to 16,810.54, 25,215.84 and 6,938.98

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Solution

The fourth proportional to 16,810.54, 25,215.84 and 6,938.98 is: 10,408.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,810.54 : 25,215.84 = 6,938.98 : x
  2. Step 2: Convert to fraction form
    16,810.54/25,215.84 = 6,938.98/x
  3. Step 3: Cross multiply
    16,810.54x = 25,215.84 × 6,938.98
  4. Step 4: Simplify right side
    16,810.54x = 174,972,209.44
  5. Step 5: Solve for x
    x = 174,972,209.44/16,810.54
  6. Step 6: Final answer
    x = 10,408.48

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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.