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Finding the Fourth Proportional to 14,425.75, 19,904.03 and 8,456.27

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Solution

The fourth proportional to 14,425.75, 19,904.03 and 8,456.27 is: 11,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,425.75 : 19,904.03 = 8,456.27 : x
  2. Step 2: Convert to fraction form
    14,425.75/19,904.03 = 8,456.27/x
  3. Step 3: Cross multiply
    14,425.75x = 19,904.03 × 8,456.27
  4. Step 4: Simplify right side
    14,425.75x = 168,313,845.74
  5. Step 5: Solve for x
    x = 168,313,845.74/14,425.75
  6. Step 6: Final answer
    x = 11,667.60

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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.