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Finding the Fourth Proportional to 12,243.74, 16,900.18 and 7,207.56

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Solution

The fourth proportional to 12,243.74, 16,900.18 and 7,207.56 is: 9,948.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.74 : 16,900.18 = 7,207.56 : x
  2. Step 2: Convert to fraction form
    12,243.74/16,900.18 = 7,207.56/x
  3. Step 3: Cross multiply
    12,243.74x = 16,900.18 × 7,207.56
  4. Step 4: Simplify right side
    12,243.74x = 121,809,061.36
  5. Step 5: Solve for x
    x = 121,809,061.36/12,243.74
  6. Step 6: Final answer
    x = 9,948.68

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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.