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Finding the Fourth Proportional to 12,243.98, 16,900.52 and 7,207.81

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Solution

The fourth proportional to 12,243.98, 16,900.52 and 7,207.81 is: 9,949.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.98 : 16,900.52 = 7,207.81 : x
  2. Step 2: Convert to fraction form
    12,243.98/16,900.52 = 7,207.81/x
  3. Step 3: Cross multiply
    12,243.98x = 16,900.52 × 7,207.81
  4. Step 4: Simplify right side
    12,243.98x = 121,815,658.77
  5. Step 5: Solve for x
    x = 121,815,658.77/12,243.98
  6. Step 6: Final answer
    x = 9,949.02

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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.