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Finding the Fourth Proportional to 69,319, 104,024.58 and 25,543

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Solution

The fourth proportional to 69,319, 104,024.58 and 25,543 is: 38,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,319 : 104,024.58 = 25,543 : x
  2. Step 2: Convert to fraction form
    69,319/104,024.58 = 25,543/x
  3. Step 3: Cross multiply
    69,319x = 104,024.58 × 25,543
  4. Step 4: Simplify right side
    69,319x = 2,657,099,846.94
  5. Step 5: Solve for x
    x = 2,657,099,846.94/69,319
  6. Step 6: Final answer
    x = 38,331.48

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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.