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Finding the Fourth Proportional to 16,530.15, 22,809.11 and 9,813.32

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Solution

The fourth proportional to 16,530.15, 22,809.11 and 9,813.32 is: 13,540.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,530.15 : 22,809.11 = 9,813.32 : x
  2. Step 2: Convert to fraction form
    16,530.15/22,809.11 = 9,813.32/x
  3. Step 3: Cross multiply
    16,530.15x = 22,809.11 × 9,813.32
  4. Step 4: Simplify right side
    16,530.15x = 223,833,103.30
  5. Step 5: Solve for x
    x = 223,833,103.30/16,530.15
  6. Step 6: Final answer
    x = 13,540.90

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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.