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Finding the Fourth Proportional to 14,296.65, 19,729.13 and 7,923.22

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Solution

The fourth proportional to 14,296.65, 19,729.13 and 7,923.22 is: 10,933.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,296.65 : 19,729.13 = 7,923.22 : x
  2. Step 2: Convert to fraction form
    14,296.65/19,729.13 = 7,923.22/x
  3. Step 3: Cross multiply
    14,296.65x = 19,729.13 × 7,923.22
  4. Step 4: Simplify right side
    14,296.65x = 156,318,207.88
  5. Step 5: Solve for x
    x = 156,318,207.88/14,296.65
  6. Step 6: Final answer
    x = 10,933.91

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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.