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Finding the Fourth Proportional to 20,041.31, 30,061.65 and 6,893.79

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Solution

The fourth proportional to 20,041.31, 30,061.65 and 6,893.79 is: 10,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,041.31 : 30,061.65 = 6,893.79 : x
  2. Step 2: Convert to fraction form
    20,041.31/30,061.65 = 6,893.79/x
  3. Step 3: Cross multiply
    20,041.31x = 30,061.65 × 6,893.79
  4. Step 4: Simplify right side
    20,041.31x = 207,238,702.15
  5. Step 5: Solve for x
    x = 207,238,702.15/20,041.31
  6. Step 6: Final answer
    x = 10,340.58

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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.