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Finding the Fourth Proportional to 8,970.96, 12,367.09 and 6,310.11

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Solution

The fourth proportional to 8,970.96, 12,367.09 and 6,310.11 is: 8,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.96 : 12,367.09 = 6,310.11 : x
  2. Step 2: Convert to fraction form
    8,970.96/12,367.09 = 6,310.11/x
  3. Step 3: Cross multiply
    8,970.96x = 12,367.09 × 6,310.11
  4. Step 4: Simplify right side
    8,970.96x = 78,037,698.28
  5. Step 5: Solve for x
    x = 78,037,698.28/8,970.96
  6. Step 6: Final answer
    x = 8,698.92

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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.