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Finding the Fourth Proportional to 9,327.64, 14,010.90 and 7,869.64

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Solution

The fourth proportional to 9,327.64, 14,010.90 and 7,869.64 is: 11,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.64 : 14,010.90 = 7,869.64 : x
  2. Step 2: Convert to fraction form
    9,327.64/14,010.90 = 7,869.64/x
  3. Step 3: Cross multiply
    9,327.64x = 14,010.90 × 7,869.64
  4. Step 4: Simplify right side
    9,327.64x = 110,260,739.08
  5. Step 5: Solve for x
    x = 110,260,739.08/9,327.64
  6. Step 6: Final answer
    x = 11,820.86

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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.