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Finding the Fourth Proportional to 14,957.48, 22,439.74 and 8,388.20

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Solution

The fourth proportional to 14,957.48, 22,439.74 and 8,388.20 is: 12,584.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,957.48 : 22,439.74 = 8,388.20 : x
  2. Step 2: Convert to fraction form
    14,957.48/22,439.74 = 8,388.20/x
  3. Step 3: Cross multiply
    14,957.48x = 22,439.74 × 8,388.20
  4. Step 4: Simplify right side
    14,957.48x = 188,229,027.07
  5. Step 5: Solve for x
    x = 188,229,027.07/14,957.48
  6. Step 6: Final answer
    x = 12,584.27

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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.