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Finding the Fourth Proportional to 19,596.62, 27,043.53 and 10,644.20

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Solution

The fourth proportional to 19,596.62, 27,043.53 and 10,644.20 is: 14,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,596.62 : 27,043.53 = 10,644.20 : x
  2. Step 2: Convert to fraction form
    19,596.62/27,043.53 = 10,644.20/x
  3. Step 3: Cross multiply
    19,596.62x = 27,043.53 × 10,644.20
  4. Step 4: Simplify right side
    19,596.62x = 287,856,742.03
  5. Step 5: Solve for x
    x = 287,856,742.03/19,596.62
  6. Step 6: Final answer
    x = 14,689.10

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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.