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Finding the Fourth Proportional to 16,923.72, 23,354.88 and 9,471.72

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Solution

The fourth proportional to 16,923.72, 23,354.88 and 9,471.72 is: 13,071.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,923.72 : 23,354.88 = 9,471.72 : x
  2. Step 2: Convert to fraction form
    16,923.72/23,354.88 = 9,471.72/x
  3. Step 3: Cross multiply
    16,923.72x = 23,354.88 × 9,471.72
  4. Step 4: Simplify right side
    16,923.72x = 221,210,883.99
  5. Step 5: Solve for x
    x = 221,210,883.99/16,923.72
  6. Step 6: Final answer
    x = 13,071.06

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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.