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Finding the Fourth Proportional to 32,609.76, 48,920.94 and 13,889.46

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Solution

The fourth proportional to 32,609.76, 48,920.94 and 13,889.46 is: 20,836.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,609.76 : 48,920.94 = 13,889.46 : x
  2. Step 2: Convert to fraction form
    32,609.76/48,920.94 = 13,889.46/x
  3. Step 3: Cross multiply
    32,609.76x = 48,920.94 × 13,889.46
  4. Step 4: Simplify right side
    32,609.76x = 679,485,439.29
  5. Step 5: Solve for x
    x = 679,485,439.29/32,609.76
  6. Step 6: Final answer
    x = 20,836.87

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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.