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Finding the Fourth Proportional to 54,842.88, 75,682.56 and 30,968.94

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Solution

The fourth proportional to 54,842.88, 75,682.56 and 30,968.94 is: 42,736.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,842.88 : 75,682.56 = 30,968.94 : x
  2. Step 2: Convert to fraction form
    54,842.88/75,682.56 = 30,968.94/x
  3. Step 3: Cross multiply
    54,842.88x = 75,682.56 × 30,968.94
  4. Step 4: Simplify right side
    54,842.88x = 2,343,808,659.69
  5. Step 5: Solve for x
    x = 2,343,808,659.69/54,842.88
  6. Step 6: Final answer
    x = 42,736.79

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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.