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Finding the Fourth Proportional to 19,454.31, 26,843.99 and 10,955.99

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Solution

The fourth proportional to 19,454.31, 26,843.99 and 10,955.99 is: 15,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,454.31 : 26,843.99 = 10,955.99 : x
  2. Step 2: Convert to fraction form
    19,454.31/26,843.99 = 10,955.99/x
  3. Step 3: Cross multiply
    19,454.31x = 26,843.99 × 10,955.99
  4. Step 4: Simplify right side
    19,454.31x = 294,102,297.00
  5. Step 5: Solve for x
    x = 294,102,297.00/19,454.31
  6. Step 6: Final answer
    x = 15,117.59

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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.