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Finding the Fourth Proportional to 12,169.32, 18,253.98 and 2,935.32

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Solution

The fourth proportional to 12,169.32, 18,253.98 and 2,935.32 is: 4,402.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.32 : 18,253.98 = 2,935.32 : x
  2. Step 2: Convert to fraction form
    12,169.32/18,253.98 = 2,935.32/x
  3. Step 3: Cross multiply
    12,169.32x = 18,253.98 × 2,935.32
  4. Step 4: Simplify right side
    12,169.32x = 53,581,272.57
  5. Step 5: Solve for x
    x = 53,581,272.57/12,169.32
  6. Step 6: Final answer
    x = 4,402.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.