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Finding the Fourth Proportional to 16,699.92, 25,049.91 and 4,219.95

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Solution

The fourth proportional to 16,699.92, 25,049.91 and 4,219.95 is: 6,329.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,699.92 : 25,049.91 = 4,219.95 : x
  2. Step 2: Convert to fraction form
    16,699.92/25,049.91 = 4,219.95/x
  3. Step 3: Cross multiply
    16,699.92x = 25,049.91 × 4,219.95
  4. Step 4: Simplify right side
    16,699.92x = 105,709,312.82
  5. Step 5: Solve for x
    x = 105,709,312.82/16,699.92
  6. Step 6: Final answer
    x = 6,329.93

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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.