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Finding the Fourth Proportional to 69,193.96, 103,791.04 and 19,274.20

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Solution

The fourth proportional to 69,193.96, 103,791.04 and 19,274.20 is: 28,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,193.96 : 103,791.04 = 19,274.20 : x
  2. Step 2: Convert to fraction form
    69,193.96/103,791.04 = 19,274.20/x
  3. Step 3: Cross multiply
    69,193.96x = 103,791.04 × 19,274.20
  4. Step 4: Simplify right side
    69,193.96x = 2,000,488,955.50
  5. Step 5: Solve for x
    x = 2,000,488,955.50/69,193.96
  6. Step 6: Final answer
    x = 28,911.32

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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.