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Finding the Fourth Proportional to 18,800.43, 25,944.54 and 10,303.08

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Solution

The fourth proportional to 18,800.43, 25,944.54 and 10,303.08 is: 14,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.43 : 25,944.54 = 10,303.08 : x
  2. Step 2: Convert to fraction form
    18,800.43/25,944.54 = 10,303.08/x
  3. Step 3: Cross multiply
    18,800.43x = 25,944.54 × 10,303.08
  4. Step 4: Simplify right side
    18,800.43x = 267,308,671.18
  5. Step 5: Solve for x
    x = 267,308,671.18/18,800.43
  6. Step 6: Final answer
    x = 14,218.22

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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.