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Finding the Fourth Proportional to 19,596.61, 27,043.47 and 10,644.11

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Solution

The fourth proportional to 19,596.61, 27,043.47 and 10,644.11 is: 14,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,596.61 : 27,043.47 = 10,644.11 : x
  2. Step 2: Convert to fraction form
    19,596.61/27,043.47 = 10,644.11/x
  3. Step 3: Cross multiply
    19,596.61x = 27,043.47 × 10,644.11
  4. Step 4: Simplify right side
    19,596.61x = 287,853,590.75
  5. Step 5: Solve for x
    x = 287,853,590.75/19,596.61
  6. Step 6: Final answer
    x = 14,688.95

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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.