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Finding the Fourth Proportional to 18,515.94, 25,552.01 and 10,018.03

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Solution

The fourth proportional to 18,515.94, 25,552.01 and 10,018.03 is: 13,824.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.94 : 25,552.01 = 10,018.03 : x
  2. Step 2: Convert to fraction form
    18,515.94/25,552.01 = 10,018.03/x
  3. Step 3: Cross multiply
    18,515.94x = 25,552.01 × 10,018.03
  4. Step 4: Simplify right side
    18,515.94x = 255,980,755.46
  5. Step 5: Solve for x
    x = 255,980,755.46/18,515.94
  6. Step 6: Final answer
    x = 13,824.88

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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.