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Finding the Fourth Proportional to 8,604.21, 11,873.94 and 4,828.20

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Solution

The fourth proportional to 8,604.21, 11,873.94 and 4,828.20 is: 6,662.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.21 : 11,873.94 = 4,828.20 : x
  2. Step 2: Convert to fraction form
    8,604.21/11,873.94 = 4,828.20/x
  3. Step 3: Cross multiply
    8,604.21x = 11,873.94 × 4,828.20
  4. Step 4: Simplify right side
    8,604.21x = 57,329,757.11
  5. Step 5: Solve for x
    x = 57,329,757.11/8,604.21
  6. Step 6: Final answer
    x = 6,662.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.