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Finding the Fourth Proportional to 19,773.68, 27,275.82 and 13,059.32

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Solution

The fourth proportional to 19,773.68, 27,275.82 and 13,059.32 is: 18,014.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.68 : 27,275.82 = 13,059.32 : x
  2. Step 2: Convert to fraction form
    19,773.68/27,275.82 = 13,059.32/x
  3. Step 3: Cross multiply
    19,773.68x = 27,275.82 × 13,059.32
  4. Step 4: Simplify right side
    19,773.68x = 356,203,661.64
  5. Step 5: Solve for x
    x = 356,203,661.64/19,773.68
  6. Step 6: Final answer
    x = 18,014.03

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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.