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Finding the Fourth Proportional to 14,059.53, 19,403.07 and 8,091.09

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Solution

The fourth proportional to 14,059.53, 19,403.07 and 8,091.09 is: 11,166.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,059.53 : 19,403.07 = 8,091.09 : x
  2. Step 2: Convert to fraction form
    14,059.53/19,403.07 = 8,091.09/x
  3. Step 3: Cross multiply
    14,059.53x = 19,403.07 × 8,091.09
  4. Step 4: Simplify right side
    14,059.53x = 156,991,985.65
  5. Step 5: Solve for x
    x = 156,991,985.65/14,059.53
  6. Step 6: Final answer
    x = 11,166.23

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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.