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Finding the Fourth Proportional to 14,293.01, 21,452.71 and 7,278.09

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Solution

The fourth proportional to 14,293.01, 21,452.71 and 7,278.09 is: 10,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,293.01 : 21,452.71 = 7,278.09 : x
  2. Step 2: Convert to fraction form
    14,293.01/21,452.71 = 7,278.09/x
  3. Step 3: Cross multiply
    14,293.01x = 21,452.71 × 7,278.09
  4. Step 4: Simplify right side
    14,293.01x = 156,134,754.12
  5. Step 5: Solve for x
    x = 156,134,754.12/14,293.01
  6. Step 6: Final answer
    x = 10,923.85

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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.