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Finding the Fourth Proportional to 23,699.70, 32,707.52 and 13,631.40

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Solution

The fourth proportional to 23,699.70, 32,707.52 and 13,631.40 is: 18,812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,699.70 : 32,707.52 = 13,631.40 : x
  2. Step 2: Convert to fraction form
    23,699.70/32,707.52 = 13,631.40/x
  3. Step 3: Cross multiply
    23,699.70x = 32,707.52 × 13,631.40
  4. Step 4: Simplify right side
    23,699.70x = 445,849,288.13
  5. Step 5: Solve for x
    x = 445,849,288.13/23,699.70
  6. Step 6: Final answer
    x = 18,812.44

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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.