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Finding the Fourth Proportional to 16,715.79, 25,073.72 and 4,235.81

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Solution

The fourth proportional to 16,715.79, 25,073.72 and 4,235.81 is: 6,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,715.79 : 25,073.72 = 4,235.81 : x
  2. Step 2: Convert to fraction form
    16,715.79/25,073.72 = 4,235.81/x
  3. Step 3: Cross multiply
    16,715.79x = 25,073.72 × 4,235.81
  4. Step 4: Simplify right side
    16,715.79x = 106,207,513.91
  5. Step 5: Solve for x
    x = 106,207,513.91/16,715.79
  6. Step 6: Final answer
    x = 6,353.72

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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.