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Finding the Fourth Proportional to 61,661.10, 92,491.70 and 14,913.98

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Solution

The fourth proportional to 61,661.10, 92,491.70 and 14,913.98 is: 22,370.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,661.10 : 92,491.70 = 14,913.98 : x
  2. Step 2: Convert to fraction form
    61,661.10/92,491.70 = 14,913.98/x
  3. Step 3: Cross multiply
    61,661.10x = 92,491.70 × 14,913.98
  4. Step 4: Simplify right side
    61,661.10x = 1,379,419,363.97
  5. Step 5: Solve for x
    x = 1,379,419,363.97/61,661.10
  6. Step 6: Final answer
    x = 22,370.98

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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.