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Finding the Fourth Proportional to 9,881.66, 14,822.01 and 2,485.95

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Solution

The fourth proportional to 9,881.66, 14,822.01 and 2,485.95 is: 3,728.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,881.66 : 14,822.01 = 2,485.95 : x
  2. Step 2: Convert to fraction form
    9,881.66/14,822.01 = 2,485.95/x
  3. Step 3: Cross multiply
    9,881.66x = 14,822.01 × 2,485.95
  4. Step 4: Simplify right side
    9,881.66x = 36,846,775.76
  5. Step 5: Solve for x
    x = 36,846,775.76/9,881.66
  6. Step 6: Final answer
    x = 3,728.81

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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.