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Finding the Fourth Proportional to 67,652.54, 101,424.11 and 28,239.15

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Solution

The fourth proportional to 67,652.54, 101,424.11 and 28,239.15 is: 42,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,652.54 : 101,424.11 = 28,239.15 : x
  2. Step 2: Convert to fraction form
    67,652.54/101,424.11 = 28,239.15/x
  3. Step 3: Cross multiply
    67,652.54x = 101,424.11 × 28,239.15
  4. Step 4: Simplify right side
    67,652.54x = 2,864,130,726.50
  5. Step 5: Solve for x
    x = 2,864,130,726.50/67,652.54
  6. Step 6: Final answer
    x = 42,335.90

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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.