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Finding the Fourth Proportional to 8,798.31, 13,217.85 and 8,326.35

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Solution

The fourth proportional to 8,798.31, 13,217.85 and 8,326.35 is: 12,508.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.31 : 13,217.85 = 8,326.35 : x
  2. Step 2: Convert to fraction form
    8,798.31/13,217.85 = 8,326.35/x
  3. Step 3: Cross multiply
    8,798.31x = 13,217.85 × 8,326.35
  4. Step 4: Simplify right side
    8,798.31x = 110,056,445.35
  5. Step 5: Solve for x
    x = 110,056,445.35/8,798.31
  6. Step 6: Final answer
    x = 12,508.82

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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.