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Finding the Fourth Proportional to 54,807.79, 75,575.47 and 47,575.73

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Solution

The fourth proportional to 54,807.79, 75,575.47 and 47,575.73 is: 65,603.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,807.79 : 75,575.47 = 47,575.73 : x
  2. Step 2: Convert to fraction form
    54,807.79/75,575.47 = 47,575.73/x
  3. Step 3: Cross multiply
    54,807.79x = 75,575.47 × 47,575.73
  4. Step 4: Simplify right side
    54,807.79x = 3,595,557,777.47
  5. Step 5: Solve for x
    x = 3,595,557,777.47/54,807.79
  6. Step 6: Final answer
    x = 65,603.05

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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.