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Finding the Fourth Proportional to 20,063.66, 30,079.06 and 7,576.59

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Solution

The fourth proportional to 20,063.66, 30,079.06 and 7,576.59 is: 11,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,063.66 : 30,079.06 = 7,576.59 : x
  2. Step 2: Convert to fraction form
    20,063.66/30,079.06 = 7,576.59/x
  3. Step 3: Cross multiply
    20,063.66x = 30,079.06 × 7,576.59
  4. Step 4: Simplify right side
    20,063.66x = 227,896,686.26
  5. Step 5: Solve for x
    x = 227,896,686.26/20,063.66
  6. Step 6: Final answer
    x = 11,358.68

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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.