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Finding the Fourth Proportional to 20,065.92, 30,096.48 and 5,275.99

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Solution

The fourth proportional to 20,065.92, 30,096.48 and 5,275.99 is: 7,913.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.92 : 30,096.48 = 5,275.99 : x
  2. Step 2: Convert to fraction form
    20,065.92/30,096.48 = 5,275.99/x
  3. Step 3: Cross multiply
    20,065.92x = 30,096.48 × 5,275.99
  4. Step 4: Simplify right side
    20,065.92x = 158,788,687.28
  5. Step 5: Solve for x
    x = 158,788,687.28/20,065.92
  6. Step 6: Final answer
    x = 7,913.35

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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.