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Finding the Fourth Proportional to 14,372.71, 19,834.92 and 7,999.57

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Solution

The fourth proportional to 14,372.71, 19,834.92 and 7,999.57 is: 11,039.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,372.71 : 19,834.92 = 7,999.57 : x
  2. Step 2: Convert to fraction form
    14,372.71/19,834.92 = 7,999.57/x
  3. Step 3: Cross multiply
    14,372.71x = 19,834.92 × 7,999.57
  4. Step 4: Simplify right side
    14,372.71x = 158,670,790.99
  5. Step 5: Solve for x
    x = 158,670,790.99/14,372.71
  6. Step 6: Final answer
    x = 11,039.72

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1.5x scale

Why These Related Problems?

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