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Finding the Fourth Proportional to 69,897.78, 104,688.95 and 32,379.03

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Solution

The fourth proportional to 69,897.78, 104,688.95 and 32,379.03 is: 48,495.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,897.78 : 104,688.95 = 32,379.03 : x
  2. Step 2: Convert to fraction form
    69,897.78/104,688.95 = 32,379.03/x
  3. Step 3: Cross multiply
    69,897.78x = 104,688.95 × 32,379.03
  4. Step 4: Simplify right side
    69,897.78x = 3,389,726,490.82
  5. Step 5: Solve for x
    x = 3,389,726,490.82/69,897.78
  6. Step 6: Final answer
    x = 48,495.48

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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.