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Finding the Fourth Proportional to 14,813.87, 20,442.92 and 8,844.42

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Solution

The fourth proportional to 14,813.87, 20,442.92 and 8,844.42 is: 12,205.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,813.87 : 20,442.92 = 8,844.42 : x
  2. Step 2: Convert to fraction form
    14,813.87/20,442.92 = 8,844.42/x
  3. Step 3: Cross multiply
    14,813.87x = 20,442.92 × 8,844.42
  4. Step 4: Simplify right side
    14,813.87x = 180,805,770.51
  5. Step 5: Solve for x
    x = 180,805,770.51/14,813.87
  6. Step 6: Final answer
    x = 12,205.17

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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.