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Finding the Fourth Proportional to 12,235.32, 16,884.72 and 6,646.32

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Solution

The fourth proportional to 12,235.32, 16,884.72 and 6,646.32 is: 9,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.32 : 16,884.72 = 6,646.32 : x
  2. Step 2: Convert to fraction form
    12,235.32/16,884.72 = 6,646.32/x
  3. Step 3: Cross multiply
    12,235.32x = 16,884.72 × 6,646.32
  4. Step 4: Simplify right side
    12,235.32x = 112,221,252.23
  5. Step 5: Solve for x
    x = 112,221,252.23/12,235.32
  6. Step 6: Final answer
    x = 9,171.91

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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.