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Finding the Fourth Proportional to 16,471.78, 22,716.02 and 14,090.74

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Solution

The fourth proportional to 16,471.78, 22,716.02 and 14,090.74 is: 19,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,471.78 : 22,716.02 = 14,090.74 : x
  2. Step 2: Convert to fraction form
    16,471.78/22,716.02 = 14,090.74/x
  3. Step 3: Cross multiply
    16,471.78x = 22,716.02 × 14,090.74
  4. Step 4: Simplify right side
    16,471.78x = 320,085,531.65
  5. Step 5: Solve for x
    x = 320,085,531.65/16,471.78
  6. Step 6: Final answer
    x = 19,432.36

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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.