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Finding the Fourth Proportional to 16,939.98, 25,410.06 and 7,699.50

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Solution

The fourth proportional to 16,939.98, 25,410.06 and 7,699.50 is: 11,549.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.98 : 25,410.06 = 7,699.50 : x
  2. Step 2: Convert to fraction form
    16,939.98/25,410.06 = 7,699.50/x
  3. Step 3: Cross multiply
    16,939.98x = 25,410.06 × 7,699.50
  4. Step 4: Simplify right side
    16,939.98x = 195,644,756.97
  5. Step 5: Solve for x
    x = 195,644,756.97/16,939.98
  6. Step 6: Final answer
    x = 11,549.29

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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.