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Finding the Fourth Proportional to 16,667.60, 24,960.90 and 8,859.20

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Solution

The fourth proportional to 16,667.60, 24,960.90 and 8,859.20 is: 13,267.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,667.60 : 24,960.90 = 8,859.20 : x
  2. Step 2: Convert to fraction form
    16,667.60/24,960.90 = 8,859.20/x
  3. Step 3: Cross multiply
    16,667.60x = 24,960.90 × 8,859.20
  4. Step 4: Simplify right side
    16,667.60x = 221,133,605.28
  5. Step 5: Solve for x
    x = 221,133,605.28/16,667.60
  6. Step 6: Final answer
    x = 13,267.27

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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.