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Finding the Fourth Proportional to 18,755.76, 25,884.24 and 10,800.08

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Solution

The fourth proportional to 18,755.76, 25,884.24 and 10,800.08 is: 14,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.76 : 25,884.24 = 10,800.08 : x
  2. Step 2: Convert to fraction form
    18,755.76/25,884.24 = 10,800.08/x
  3. Step 3: Cross multiply
    18,755.76x = 25,884.24 × 10,800.08
  4. Step 4: Simplify right side
    18,755.76x = 279,551,862.74
  5. Step 5: Solve for x
    x = 279,551,862.74/18,755.76
  6. Step 6: Final answer
    x = 14,904.85

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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.