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Finding the Fourth Proportional to 20,059.57, 30,070.93 and 6,908.82

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Solution

The fourth proportional to 20,059.57, 30,070.93 and 6,908.82 is: 10,356.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.57 : 30,070.93 = 6,908.82 : x
  2. Step 2: Convert to fraction form
    20,059.57/30,070.93 = 6,908.82/x
  3. Step 3: Cross multiply
    20,059.57x = 30,070.93 × 6,908.82
  4. Step 4: Simplify right side
    20,059.57x = 207,754,642.60
  5. Step 5: Solve for x
    x = 207,754,642.60/20,059.57
  6. Step 6: Final answer
    x = 10,356.88

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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.