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Finding the Fourth Proportional to 69,471.47, 104,206.89 and 16,881.10

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Solution

The fourth proportional to 69,471.47, 104,206.89 and 16,881.10 is: 25,321.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,471.47 : 104,206.89 = 16,881.10 : x
  2. Step 2: Convert to fraction form
    69,471.47/104,206.89 = 16,881.10/x
  3. Step 3: Cross multiply
    69,471.47x = 104,206.89 × 16,881.10
  4. Step 4: Simplify right side
    69,471.47x = 1,759,126,930.78
  5. Step 5: Solve for x
    x = 1,759,126,930.78/69,471.47
  6. Step 6: Final answer
    x = 25,321.57

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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.