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Finding the Fourth Proportional to 18,883.32, 26,043.48 and 16,760.40

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Solution

The fourth proportional to 18,883.32, 26,043.48 and 16,760.40 is: 23,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,883.32 : 26,043.48 = 16,760.40 : x
  2. Step 2: Convert to fraction form
    18,883.32/26,043.48 = 16,760.40/x
  3. Step 3: Cross multiply
    18,883.32x = 26,043.48 × 16,760.40
  4. Step 4: Simplify right side
    18,883.32x = 436,499,142.19
  5. Step 5: Solve for x
    x = 436,499,142.19/18,883.32
  6. Step 6: Final answer
    x = 23,115.59

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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.