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Finding the Fourth Proportional to 8,571.30, 11,828.86 and 4,794.40

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Solution

The fourth proportional to 8,571.30, 11,828.86 and 4,794.40 is: 6,616.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.30 : 11,828.86 = 4,794.40 : x
  2. Step 2: Convert to fraction form
    8,571.30/11,828.86 = 4,794.40/x
  3. Step 3: Cross multiply
    8,571.30x = 11,828.86 × 4,794.40
  4. Step 4: Simplify right side
    8,571.30x = 56,712,286.38
  5. Step 5: Solve for x
    x = 56,712,286.38/8,571.30
  6. Step 6: Final answer
    x = 6,616.53

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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.