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Finding the Fourth Proportional to 19,231.40, 26,535.90 and 10,847.90

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Solution

The fourth proportional to 19,231.40, 26,535.90 and 10,847.90 is: 14,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,231.40 : 26,535.90 = 10,847.90 : x
  2. Step 2: Convert to fraction form
    19,231.40/26,535.90 = 10,847.90/x
  3. Step 3: Cross multiply
    19,231.40x = 26,535.90 × 10,847.90
  4. Step 4: Simplify right side
    19,231.40x = 287,858,789.61
  5. Step 5: Solve for x
    x = 287,858,789.61/19,231.40
  6. Step 6: Final answer
    x = 14,968.17

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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.