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Finding the Fourth Proportional to 8,869.37, 13,291.70 and 4,481.70

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Solution

The fourth proportional to 8,869.37, 13,291.70 and 4,481.70 is: 6,716.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.37 : 13,291.70 = 4,481.70 : x
  2. Step 2: Convert to fraction form
    8,869.37/13,291.70 = 4,481.70/x
  3. Step 3: Cross multiply
    8,869.37x = 13,291.70 × 4,481.70
  4. Step 4: Simplify right side
    8,869.37x = 59,569,422.71
  5. Step 5: Solve for x
    x = 59,569,422.71/8,869.37
  6. Step 6: Final answer
    x = 6,716.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.