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Finding the Fourth Proportional to 73,032.44, 100,784.72 and 39,498.44

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Solution

The fourth proportional to 73,032.44, 100,784.72 and 39,498.44 is: 54,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,032.44 : 100,784.72 = 39,498.44 : x
  2. Step 2: Convert to fraction form
    73,032.44/100,784.72 = 39,498.44/x
  3. Step 3: Cross multiply
    73,032.44x = 100,784.72 × 39,498.44
  4. Step 4: Simplify right side
    73,032.44x = 3,980,839,215.84
  5. Step 5: Solve for x
    x = 3,980,839,215.84/73,032.44
  6. Step 6: Final answer
    x = 54,507.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.