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Finding the Fourth Proportional to 9,164.64, 13,746.96 and 5,266.56

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Solution

The fourth proportional to 9,164.64, 13,746.96 and 5,266.56 is: 7,899.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,164.64 : 13,746.96 = 5,266.56 : x
  2. Step 2: Convert to fraction form
    9,164.64/13,746.96 = 5,266.56/x
  3. Step 3: Cross multiply
    9,164.64x = 13,746.96 × 5,266.56
  4. Step 4: Simplify right side
    9,164.64x = 72,399,189.66
  5. Step 5: Solve for x
    x = 72,399,189.66/9,164.64
  6. Step 6: Final answer
    x = 7,899.84

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Similar ratio
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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.