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Finding the Fourth Proportional to 10,858.61, 16,289.94 and 4,935.92

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Solution

The fourth proportional to 10,858.61, 16,289.94 and 4,935.92 is: 7,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.61 : 16,289.94 = 4,935.92 : x
  2. Step 2: Convert to fraction form
    10,858.61/16,289.94 = 4,935.92/x
  3. Step 3: Cross multiply
    10,858.61x = 16,289.94 × 4,935.92
  4. Step 4: Simplify right side
    10,858.61x = 80,405,840.64
  5. Step 5: Solve for x
    x = 80,405,840.64/10,858.61
  6. Step 6: Final answer
    x = 7,404.80

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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.