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Finding the Fourth Proportional to 57,851.73, 86,678.53 and 31,574.91

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Solution

The fourth proportional to 57,851.73, 86,678.53 and 31,574.91 is: 47,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,851.73 : 86,678.53 = 31,574.91 : x
  2. Step 2: Convert to fraction form
    57,851.73/86,678.53 = 31,574.91/x
  3. Step 3: Cross multiply
    57,851.73x = 86,678.53 × 31,574.91
  4. Step 4: Simplify right side
    57,851.73x = 2,736,866,783.68
  5. Step 5: Solve for x
    x = 2,736,866,783.68/57,851.73
  6. Step 6: Final answer
    x = 47,308.30

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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.