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Finding the Fourth Proportional to 14,579.64, 21,866.22 and 4,192.20

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Solution

The fourth proportional to 14,579.64, 21,866.22 and 4,192.20 is: 6,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.64 : 21,866.22 = 4,192.20 : x
  2. Step 2: Convert to fraction form
    14,579.64/21,866.22 = 4,192.20/x
  3. Step 3: Cross multiply
    14,579.64x = 21,866.22 × 4,192.20
  4. Step 4: Simplify right side
    14,579.64x = 91,667,567.48
  5. Step 5: Solve for x
    x = 91,667,567.48/14,579.64
  6. Step 6: Final answer
    x = 6,287.37

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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.