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Finding the Fourth Proportional to 13,677.17, 20,506.02 and 7,015.67

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Solution

The fourth proportional to 13,677.17, 20,506.02 and 7,015.67 is: 10,518.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.17 : 20,506.02 = 7,015.67 : x
  2. Step 2: Convert to fraction form
    13,677.17/20,506.02 = 7,015.67/x
  3. Step 3: Cross multiply
    13,677.17x = 20,506.02 × 7,015.67
  4. Step 4: Simplify right side
    13,677.17x = 143,863,469.33
  5. Step 5: Solve for x
    x = 143,863,469.33/13,677.17
  6. Step 6: Final answer
    x = 10,518.51

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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.