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Finding the Fourth Proportional to 18,800.02, 25,944.90 and 10,416.52

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Solution

The fourth proportional to 18,800.02, 25,944.90 and 10,416.52 is: 14,375.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.02 : 25,944.90 = 10,416.52 : x
  2. Step 2: Convert to fraction form
    18,800.02/25,944.90 = 10,416.52/x
  3. Step 3: Cross multiply
    18,800.02x = 25,944.90 × 10,416.52
  4. Step 4: Simplify right side
    18,800.02x = 270,255,569.75
  5. Step 5: Solve for x
    x = 270,255,569.75/18,800.02
  6. Step 6: Final answer
    x = 14,375.28

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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.