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Finding the Fourth Proportional to 23,998.50, 33,117.84 and 13,387.50

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Solution

The fourth proportional to 23,998.50, 33,117.84 and 13,387.50 is: 18,474.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,998.50 : 33,117.84 = 13,387.50 : x
  2. Step 2: Convert to fraction form
    23,998.50/33,117.84 = 13,387.50/x
  3. Step 3: Cross multiply
    23,998.50x = 33,117.84 × 13,387.50
  4. Step 4: Simplify right side
    23,998.50x = 443,365,083.00
  5. Step 5: Solve for x
    x = 443,365,083.00/23,998.50
  6. Step 6: Final answer
    x = 18,474.70

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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.