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Finding the Fourth Proportional to 8,605.42, 11,874.78 and 4,828.08

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Solution

The fourth proportional to 8,605.42, 11,874.78 and 4,828.08 is: 6,662.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.42 : 11,874.78 = 4,828.08 : x
  2. Step 2: Convert to fraction form
    8,605.42/11,874.78 = 4,828.08/x
  3. Step 3: Cross multiply
    8,605.42x = 11,874.78 × 4,828.08
  4. Step 4: Simplify right side
    8,605.42x = 57,332,387.82
  5. Step 5: Solve for x
    x = 57,332,387.82/8,605.42
  6. Step 6: Final answer
    x = 6,662.36

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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.