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Finding the Fourth Proportional to 67,009.52, 100,525.08 and 20,258.48

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Solution

The fourth proportional to 67,009.52, 100,525.08 and 20,258.48 is: 30,390.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,009.52 : 100,525.08 = 20,258.48 : x
  2. Step 2: Convert to fraction form
    67,009.52/100,525.08 = 20,258.48/x
  3. Step 3: Cross multiply
    67,009.52x = 100,525.08 × 20,258.48
  4. Step 4: Simplify right side
    67,009.52x = 2,036,485,322.68
  5. Step 5: Solve for x
    x = 2,036,485,322.68/67,009.52
  6. Step 6: Final answer
    x = 30,390.99

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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.