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Finding the Fourth Proportional to 61,260.50, 91,895.36 and 16,886.86

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Solution

The fourth proportional to 61,260.50, 91,895.36 and 16,886.86 is: 25,331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,260.50 : 91,895.36 = 16,886.86 : x
  2. Step 2: Convert to fraction form
    61,260.50/91,895.36 = 16,886.86/x
  3. Step 3: Cross multiply
    61,260.50x = 91,895.36 × 16,886.86
  4. Step 4: Simplify right side
    61,260.50x = 1,551,824,376.70
  5. Step 5: Solve for x
    x = 1,551,824,376.70/61,260.50
  6. Step 6: Final answer
    x = 25,331.56

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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.