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Finding the Fourth Proportional to 19,935, 27,311.08 and 19,187.64

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Solution

The fourth proportional to 19,935, 27,311.08 and 19,187.64 is: 26,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935 : 27,311.08 = 19,187.64 : x
  2. Step 2: Convert to fraction form
    19,935/27,311.08 = 19,187.64/x
  3. Step 3: Cross multiply
    19,935x = 27,311.08 × 19,187.64
  4. Step 4: Simplify right side
    19,935x = 524,035,171.05
  5. Step 5: Solve for x
    x = 524,035,171.05/19,935
  6. Step 6: Final answer
    x = 26,287.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.