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Finding the Fourth Proportional to 14,773.64, 20,387.12 and 8,059.08

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Solution

The fourth proportional to 14,773.64, 20,387.12 and 8,059.08 is: 11,121.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,773.64 : 20,387.12 = 8,059.08 : x
  2. Step 2: Convert to fraction form
    14,773.64/20,387.12 = 8,059.08/x
  3. Step 3: Cross multiply
    14,773.64x = 20,387.12 × 8,059.08
  4. Step 4: Simplify right side
    14,773.64x = 164,301,431.05
  5. Step 5: Solve for x
    x = 164,301,431.05/14,773.64
  6. Step 6: Final answer
    x = 11,121.26

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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.