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Finding the Fourth Proportional to 12,246.93, 16,901.49 and 7,209.99

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Solution

The fourth proportional to 12,246.93, 16,901.49 and 7,209.99 is: 9,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246.93 : 16,901.49 = 7,209.99 : x
  2. Step 2: Convert to fraction form
    12,246.93/16,901.49 = 7,209.99/x
  3. Step 3: Cross multiply
    12,246.93x = 16,901.49 × 7,209.99
  4. Step 4: Simplify right side
    12,246.93x = 121,859,573.89
  5. Step 5: Solve for x
    x = 121,859,573.89/12,246.93
  6. Step 6: Final answer
    x = 9,950.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.