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Finding the Fourth Proportional to 60,466.47, 90,699.91 and 18,346.90

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Solution

The fourth proportional to 60,466.47, 90,699.91 and 18,346.90 is: 27,520.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,466.47 : 90,699.91 = 18,346.90 : x
  2. Step 2: Convert to fraction form
    60,466.47/90,699.91 = 18,346.90/x
  3. Step 3: Cross multiply
    60,466.47x = 90,699.91 × 18,346.90
  4. Step 4: Simplify right side
    60,466.47x = 1,664,062,178.78
  5. Step 5: Solve for x
    x = 1,664,062,178.78/60,466.47
  6. Step 6: Final answer
    x = 27,520.41

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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.