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Finding the Fourth Proportional to 58,103.53, 86,935.34 and 34,423.79

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Solution

The fourth proportional to 58,103.53, 86,935.34 and 34,423.79 is: 51,505.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,103.53 : 86,935.34 = 34,423.79 : x
  2. Step 2: Convert to fraction form
    58,103.53/86,935.34 = 34,423.79/x
  3. Step 3: Cross multiply
    58,103.53x = 86,935.34 × 34,423.79
  4. Step 4: Simplify right side
    58,103.53x = 2,992,643,539.12
  5. Step 5: Solve for x
    x = 2,992,643,539.12/58,103.53
  6. Step 6: Final answer
    x = 51,505.37

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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.