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Finding the Fourth Proportional to 18,397.63, 27,595.86 and 5,249.89

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Solution

The fourth proportional to 18,397.63, 27,595.86 and 5,249.89 is: 7,874.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.63 : 27,595.86 = 5,249.89 : x
  2. Step 2: Convert to fraction form
    18,397.63/27,595.86 = 5,249.89/x
  3. Step 3: Cross multiply
    18,397.63x = 27,595.86 × 5,249.89
  4. Step 4: Simplify right side
    18,397.63x = 144,875,229.46
  5. Step 5: Solve for x
    x = 144,875,229.46/18,397.63
  6. Step 6: Final answer
    x = 7,874.67

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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.