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Finding the Fourth Proportional to 8,857.14, 13,293.90 and 4,477.67

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Solution

The fourth proportional to 8,857.14, 13,293.90 and 4,477.67 is: 6,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.14 : 13,293.90 = 4,477.67 : x
  2. Step 2: Convert to fraction form
    8,857.14/13,293.90 = 4,477.67/x
  3. Step 3: Cross multiply
    8,857.14x = 13,293.90 × 4,477.67
  4. Step 4: Simplify right side
    8,857.14x = 59,525,697.21
  5. Step 5: Solve for x
    x = 59,525,697.21/8,857.14
  6. Step 6: Final answer
    x = 6,720.65

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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.