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Finding the Fourth Proportional to 19,591.98, 27,036.84 and 10,639.41

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Solution

The fourth proportional to 19,591.98, 27,036.84 and 10,639.41 is: 14,682.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,591.98 : 27,036.84 = 10,639.41 : x
  2. Step 2: Convert to fraction form
    19,591.98/27,036.84 = 10,639.41/x
  3. Step 3: Cross multiply
    19,591.98x = 27,036.84 × 10,639.41
  4. Step 4: Simplify right side
    19,591.98x = 287,656,025.86
  5. Step 5: Solve for x
    x = 287,656,025.86/19,591.98
  6. Step 6: Final answer
    x = 14,682.34

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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.