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Finding the Fourth Proportional to 8,996.10, 12,456.09 and 8,535.30

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Solution

The fourth proportional to 8,996.10, 12,456.09 and 8,535.30 is: 11,818.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,996.10 : 12,456.09 = 8,535.30 : x
  2. Step 2: Convert to fraction form
    8,996.10/12,456.09 = 8,535.30/x
  3. Step 3: Cross multiply
    8,996.10x = 12,456.09 × 8,535.30
  4. Step 4: Simplify right side
    8,996.10x = 106,316,464.98
  5. Step 5: Solve for x
    x = 106,316,464.98/8,996.10
  6. Step 6: Final answer
    x = 11,818.06

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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.