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Finding the Fourth Proportional to 69,171.52, 103,771.86 and 22,420.76

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Solution

The fourth proportional to 69,171.52, 103,771.86 and 22,420.76 is: 33,635.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,171.52 : 103,771.86 = 22,420.76 : x
  2. Step 2: Convert to fraction form
    69,171.52/103,771.86 = 22,420.76/x
  3. Step 3: Cross multiply
    69,171.52x = 103,771.86 × 22,420.76
  4. Step 4: Simplify right side
    69,171.52x = 2,326,643,967.81
  5. Step 5: Solve for x
    x = 2,326,643,967.81/69,171.52
  6. Step 6: Final answer
    x = 33,635.87

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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.