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Finding the Fourth Proportional to 69,072.60, 103,532.10 and 37,930.20

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Solution

The fourth proportional to 69,072.60, 103,532.10 and 37,930.20 is: 56,853.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,072.60 : 103,532.10 = 37,930.20 : x
  2. Step 2: Convert to fraction form
    69,072.60/103,532.10 = 37,930.20/x
  3. Step 3: Cross multiply
    69,072.60x = 103,532.10 × 37,930.20
  4. Step 4: Simplify right side
    69,072.60x = 3,926,993,259.42
  5. Step 5: Solve for x
    x = 3,926,993,259.42/69,072.60
  6. Step 6: Final answer
    x = 56,853.13

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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.