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Finding the Fourth Proportional to 73,936.20, 110,904.30 and 21,347.40

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Solution

The fourth proportional to 73,936.20, 110,904.30 and 21,347.40 is: 32,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,936.20 : 110,904.30 = 21,347.40 : x
  2. Step 2: Convert to fraction form
    73,936.20/110,904.30 = 21,347.40/x
  3. Step 3: Cross multiply
    73,936.20x = 110,904.30 × 21,347.40
  4. Step 4: Simplify right side
    73,936.20x = 2,367,518,453.82
  5. Step 5: Solve for x
    x = 2,367,518,453.82/73,936.20
  6. Step 6: Final answer
    x = 32,021.10

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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.