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Finding the Fourth Proportional to 13,636.59, 20,454.90 and 5,850.87

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Solution

The fourth proportional to 13,636.59, 20,454.90 and 5,850.87 is: 8,776.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.59 : 20,454.90 = 5,850.87 : x
  2. Step 2: Convert to fraction form
    13,636.59/20,454.90 = 5,850.87/x
  3. Step 3: Cross multiply
    13,636.59x = 20,454.90 × 5,850.87
  4. Step 4: Simplify right side
    13,636.59x = 119,678,960.76
  5. Step 5: Solve for x
    x = 119,678,960.76/13,636.59
  6. Step 6: Final answer
    x = 8,776.31

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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.