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Finding the Fourth Proportional to 18,516.84, 25,553.13 and 10,018.94

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Solution

The fourth proportional to 18,516.84, 25,553.13 and 10,018.94 is: 13,826.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.84 : 25,553.13 = 10,018.94 : x
  2. Step 2: Convert to fraction form
    18,516.84/25,553.13 = 10,018.94/x
  3. Step 3: Cross multiply
    18,516.84x = 25,553.13 × 10,018.94
  4. Step 4: Simplify right side
    18,516.84x = 256,015,276.28
  5. Step 5: Solve for x
    x = 256,015,276.28/18,516.84
  6. Step 6: Final answer
    x = 13,826.08

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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.