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Finding the Fourth Proportional to 18,807.71, 28,204.26 and 10,037.84

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Solution

The fourth proportional to 18,807.71, 28,204.26 and 10,037.84 is: 15,052.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,807.71 : 28,204.26 = 10,037.84 : x
  2. Step 2: Convert to fraction form
    18,807.71/28,204.26 = 10,037.84/x
  3. Step 3: Cross multiply
    18,807.71x = 28,204.26 × 10,037.84
  4. Step 4: Simplify right side
    18,807.71x = 283,109,708.18
  5. Step 5: Solve for x
    x = 283,109,708.18/18,807.71
  6. Step 6: Final answer
    x = 15,052.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.