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Finding the Fourth Proportional to 18,857.14, 26,020.86 and 10,901.92

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Solution

The fourth proportional to 18,857.14, 26,020.86 and 10,901.92 is: 15,043.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.14 : 26,020.86 = 10,901.92 : x
  2. Step 2: Convert to fraction form
    18,857.14/26,020.86 = 10,901.92/x
  3. Step 3: Cross multiply
    18,857.14x = 26,020.86 × 10,901.92
  4. Step 4: Simplify right side
    18,857.14x = 283,677,334.05
  5. Step 5: Solve for x
    x = 283,677,334.05/18,857.14
  6. Step 6: Final answer
    x = 15,043.50

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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.