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Finding the Fourth Proportional to 16,281.32, 22,468.18 and 8,829.32

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Solution

The fourth proportional to 16,281.32, 22,468.18 and 8,829.32 is: 12,184.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,281.32 : 22,468.18 = 8,829.32 : x
  2. Step 2: Convert to fraction form
    16,281.32/22,468.18 = 8,829.32/x
  3. Step 3: Cross multiply
    16,281.32x = 22,468.18 × 8,829.32
  4. Step 4: Simplify right side
    16,281.32x = 198,378,751.04
  5. Step 5: Solve for x
    x = 198,378,751.04/16,281.32
  6. Step 6: Final answer
    x = 12,184.44

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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.