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Finding the Fourth Proportional to 9,860.10, 14,826.60 and 8,256.30

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Solution

The fourth proportional to 9,860.10, 14,826.60 and 8,256.30 is: 12,414.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.10 : 14,826.60 = 8,256.30 : x
  2. Step 2: Convert to fraction form
    9,860.10/14,826.60 = 8,256.30/x
  3. Step 3: Cross multiply
    9,860.10x = 14,826.60 × 8,256.30
  4. Step 4: Simplify right side
    9,860.10x = 122,412,857.58
  5. Step 5: Solve for x
    x = 122,412,857.58/9,860.10
  6. Step 6: Final answer
    x = 12,414.97

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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.