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Finding the Fourth Proportional to 14,990.84, 22,486.32 and 3,896.74

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Solution

The fourth proportional to 14,990.84, 22,486.32 and 3,896.74 is: 5,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990.84 : 22,486.32 = 3,896.74 : x
  2. Step 2: Convert to fraction form
    14,990.84/22,486.32 = 3,896.74/x
  3. Step 3: Cross multiply
    14,990.84x = 22,486.32 × 3,896.74
  4. Step 4: Simplify right side
    14,990.84x = 87,623,342.60
  5. Step 5: Solve for x
    x = 87,623,342.60/14,990.84
  6. Step 6: Final answer
    x = 5,845.13

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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.