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Finding the Fourth Proportional to 18,849.84, 28,250.16 and 10,529.52

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Solution

The fourth proportional to 18,849.84, 28,250.16 and 10,529.52 is: 15,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849.84 : 28,250.16 = 10,529.52 : x
  2. Step 2: Convert to fraction form
    18,849.84/28,250.16 = 10,529.52/x
  3. Step 3: Cross multiply
    18,849.84x = 28,250.16 × 10,529.52
  4. Step 4: Simplify right side
    18,849.84x = 297,460,624.72
  5. Step 5: Solve for x
    x = 297,460,624.72/18,849.84
  6. Step 6: Final answer
    x = 15,780.54

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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.