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Finding the Fourth Proportional to 14,990.88, 22,485.78 and 3,897.66

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Solution

The fourth proportional to 14,990.88, 22,485.78 and 3,897.66 is: 5,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990.88 : 22,485.78 = 3,897.66 : x
  2. Step 2: Convert to fraction form
    14,990.88/22,485.78 = 3,897.66/x
  3. Step 3: Cross multiply
    14,990.88x = 22,485.78 × 3,897.66
  4. Step 4: Simplify right side
    14,990.88x = 87,641,925.27
  5. Step 5: Solve for x
    x = 87,641,925.27/14,990.88
  6. Step 6: Final answer
    x = 5,846.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.