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Finding the Fourth Proportional to 20,069.76, 30,076.59 and 17,092.71

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Solution

The fourth proportional to 20,069.76, 30,076.59 and 17,092.71 is: 25,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.76 : 30,076.59 = 17,092.71 : x
  2. Step 2: Convert to fraction form
    20,069.76/30,076.59 = 17,092.71/x
  3. Step 3: Cross multiply
    20,069.76x = 30,076.59 × 17,092.71
  4. Step 4: Simplify right side
    20,069.76x = 514,090,430.66
  5. Step 5: Solve for x
    x = 514,090,430.66/20,069.76
  6. Step 6: Final answer
    x = 25,615.18

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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.