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Finding the Fourth Proportional to 16,320.60, 22,520.88 and 9,247

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Solution

The fourth proportional to 16,320.60, 22,520.88 and 9,247 is: 12,759.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,320.60 : 22,520.88 = 9,247 : x
  2. Step 2: Convert to fraction form
    16,320.60/22,520.88 = 9,247/x
  3. Step 3: Cross multiply
    16,320.60x = 22,520.88 × 9,247
  4. Step 4: Simplify right side
    16,320.60x = 208,250,577.36
  5. Step 5: Solve for x
    x = 208,250,577.36/16,320.60
  6. Step 6: Final answer
    x = 12,759.98

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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.