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Finding the Fourth Proportional to 8,605.36, 11,874.92 and 4,828.18

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Solution

The fourth proportional to 8,605.36, 11,874.92 and 4,828.18 is: 6,662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.36 : 11,874.92 = 4,828.18 : x
  2. Step 2: Convert to fraction form
    8,605.36/11,874.92 = 4,828.18/x
  3. Step 3: Cross multiply
    8,605.36x = 11,874.92 × 4,828.18
  4. Step 4: Simplify right side
    8,605.36x = 57,334,246.84
  5. Step 5: Solve for x
    x = 57,334,246.84/8,605.36
  6. Step 6: Final answer
    x = 6,662.62

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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.