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Finding the Fourth Proportional to 69,416.79, 104,125.20 and 16,826.28

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Solution

The fourth proportional to 69,416.79, 104,125.20 and 16,826.28 is: 25,239.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,416.79 : 104,125.20 = 16,826.28 : x
  2. Step 2: Convert to fraction form
    69,416.79/104,125.20 = 16,826.28/x
  3. Step 3: Cross multiply
    69,416.79x = 104,125.20 × 16,826.28
  4. Step 4: Simplify right side
    69,416.79x = 1,752,039,770.26
  5. Step 5: Solve for x
    x = 1,752,039,770.26/69,416.79
  6. Step 6: Final answer
    x = 25,239.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.