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Finding the Fourth Proportional to 8,893.85, 12,259.78 and 6,652.31

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Solution

The fourth proportional to 8,893.85, 12,259.78 and 6,652.31 is: 9,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.85 : 12,259.78 = 6,652.31 : x
  2. Step 2: Convert to fraction form
    8,893.85/12,259.78 = 6,652.31/x
  3. Step 3: Cross multiply
    8,893.85x = 12,259.78 × 6,652.31
  4. Step 4: Simplify right side
    8,893.85x = 81,555,779.16
  5. Step 5: Solve for x
    x = 81,555,779.16/8,893.85
  6. Step 6: Final answer
    x = 9,169.91

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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.