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Finding the Fourth Proportional to 18,877.52, 26,037.24 and 12,902.96

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Solution

The fourth proportional to 18,877.52, 26,037.24 and 12,902.96 is: 17,796.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.52 : 26,037.24 = 12,902.96 : x
  2. Step 2: Convert to fraction form
    18,877.52/26,037.24 = 12,902.96/x
  3. Step 3: Cross multiply
    18,877.52x = 26,037.24 × 12,902.96
  4. Step 4: Simplify right side
    18,877.52x = 335,957,466.23
  5. Step 5: Solve for x
    x = 335,957,466.23/18,877.52
  6. Step 6: Final answer
    x = 17,796.70

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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.