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Finding the Fourth Proportional to 19,520.99, 26,939.03 and 10,568.47

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Solution

The fourth proportional to 19,520.99, 26,939.03 and 10,568.47 is: 14,584.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.99 : 26,939.03 = 10,568.47 : x
  2. Step 2: Convert to fraction form
    19,520.99/26,939.03 = 10,568.47/x
  3. Step 3: Cross multiply
    19,520.99x = 26,939.03 × 10,568.47
  4. Step 4: Simplify right side
    19,520.99x = 284,704,330.38
  5. Step 5: Solve for x
    x = 284,704,330.38/19,520.99
  6. Step 6: Final answer
    x = 14,584.52

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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.