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Finding the Fourth Proportional to 69,293.20, 103,939.80 and 24,921.40

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Solution

The fourth proportional to 69,293.20, 103,939.80 and 24,921.40 is: 37,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,293.20 : 103,939.80 = 24,921.40 : x
  2. Step 2: Convert to fraction form
    69,293.20/103,939.80 = 24,921.40/x
  3. Step 3: Cross multiply
    69,293.20x = 103,939.80 × 24,921.40
  4. Step 4: Simplify right side
    69,293.20x = 2,590,325,331.72
  5. Step 5: Solve for x
    x = 2,590,325,331.72/69,293.20
  6. Step 6: Final answer
    x = 37,382.10

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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.