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Finding the Fourth Proportional to 8,601.70, 11,870.48 and 4,825.70

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Solution

The fourth proportional to 8,601.70, 11,870.48 and 4,825.70 is: 6,659.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.70 : 11,870.48 = 4,825.70 : x
  2. Step 2: Convert to fraction form
    8,601.70/11,870.48 = 4,825.70/x
  3. Step 3: Cross multiply
    8,601.70x = 11,870.48 × 4,825.70
  4. Step 4: Simplify right side
    8,601.70x = 57,283,351.21
  5. Step 5: Solve for x
    x = 57,283,351.21/8,601.70
  6. Step 6: Final answer
    x = 6,659.54

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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.