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Finding the Fourth Proportional to 67,483.20, 101,238.45 and 20,099.10

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Solution

The fourth proportional to 67,483.20, 101,238.45 and 20,099.10 is: 30,152.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,483.20 : 101,238.45 = 20,099.10 : x
  2. Step 2: Convert to fraction form
    67,483.20/101,238.45 = 20,099.10/x
  3. Step 3: Cross multiply
    67,483.20x = 101,238.45 × 20,099.10
  4. Step 4: Simplify right side
    67,483.20x = 2,034,801,730.40
  5. Step 5: Solve for x
    x = 2,034,801,730.40/67,483.20
  6. Step 6: Final answer
    x = 30,152.72

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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.