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Finding the Fourth Proportional to 16,699.40, 25,049.10 and 4,219.46

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Solution

The fourth proportional to 16,699.40, 25,049.10 and 4,219.46 is: 6,329.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,699.40 : 25,049.10 = 4,219.46 : x
  2. Step 2: Convert to fraction form
    16,699.40/25,049.10 = 4,219.46/x
  3. Step 3: Cross multiply
    16,699.40x = 25,049.10 × 4,219.46
  4. Step 4: Simplify right side
    16,699.40x = 105,693,675.49
  5. Step 5: Solve for x
    x = 105,693,675.49/16,699.40
  6. Step 6: Final answer
    x = 6,329.19

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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.