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Finding the Fourth Proportional to 14,293.52, 21,453.46 and 7,278.59

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Solution

The fourth proportional to 14,293.52, 21,453.46 and 7,278.59 is: 10,924.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,293.52 : 21,453.46 = 7,278.59 : x
  2. Step 2: Convert to fraction form
    14,293.52/21,453.46 = 7,278.59/x
  3. Step 3: Cross multiply
    14,293.52x = 21,453.46 × 7,278.59
  4. Step 4: Simplify right side
    14,293.52x = 156,150,813.96
  5. Step 5: Solve for x
    x = 156,150,813.96/14,293.52
  6. Step 6: Final answer
    x = 10,924.59

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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.