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Finding the Fourth Proportional to 60,425, 90,642.62 and 16,649

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Solution

The fourth proportional to 60,425, 90,642.62 and 16,649 is: 24,974.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,425 : 90,642.62 = 16,649 : x
  2. Step 2: Convert to fraction form
    60,425/90,642.62 = 16,649/x
  3. Step 3: Cross multiply
    60,425x = 90,642.62 × 16,649
  4. Step 4: Simplify right side
    60,425x = 1,509,108,980.38
  5. Step 5: Solve for x
    x = 1,509,108,980.38/60,425
  6. Step 6: Final answer
    x = 24,974.91

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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.