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Finding the Fourth Proportional to 16,460.82, 22,715.64 and 9,385.88

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Solution

The fourth proportional to 16,460.82, 22,715.64 and 9,385.88 is: 12,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,460.82 : 22,715.64 = 9,385.88 : x
  2. Step 2: Convert to fraction form
    16,460.82/22,715.64 = 9,385.88/x
  3. Step 3: Cross multiply
    16,460.82x = 22,715.64 × 9,385.88
  4. Step 4: Simplify right side
    16,460.82x = 213,206,157.59
  5. Step 5: Solve for x
    x = 213,206,157.59/16,460.82
  6. Step 6: Final answer
    x = 12,952.34

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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.