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Finding the Fourth Proportional to 14,848.16, 20,490.78 and 8,474.62

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Solution

The fourth proportional to 14,848.16, 20,490.78 and 8,474.62 is: 11,695.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,848.16 : 20,490.78 = 8,474.62 : x
  2. Step 2: Convert to fraction form
    14,848.16/20,490.78 = 8,474.62/x
  3. Step 3: Cross multiply
    14,848.16x = 20,490.78 × 8,474.62
  4. Step 4: Simplify right side
    14,848.16x = 173,651,522.78
  5. Step 5: Solve for x
    x = 173,651,522.78/14,848.16
  6. Step 6: Final answer
    x = 11,695.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.