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Finding the Fourth Proportional to 16,652.80, 22,979.20 and 9,200.32

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Solution

The fourth proportional to 16,652.80, 22,979.20 and 9,200.32 is: 12,695.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,652.80 : 22,979.20 = 9,200.32 : x
  2. Step 2: Convert to fraction form
    16,652.80/22,979.20 = 9,200.32/x
  3. Step 3: Cross multiply
    16,652.80x = 22,979.20 × 9,200.32
  4. Step 4: Simplify right side
    16,652.80x = 211,415,993.34
  5. Step 5: Solve for x
    x = 211,415,993.34/16,652.80
  6. Step 6: Final answer
    x = 12,695.52

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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.