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Finding the Fourth Proportional to 19,695.67, 29,543.91 and 10,986.01

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Solution

The fourth proportional to 19,695.67, 29,543.91 and 10,986.01 is: 16,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.67 : 29,543.91 = 10,986.01 : x
  2. Step 2: Convert to fraction form
    19,695.67/29,543.91 = 10,986.01/x
  3. Step 3: Cross multiply
    19,695.67x = 29,543.91 × 10,986.01
  4. Step 4: Simplify right side
    19,695.67x = 324,569,575.64
  5. Step 5: Solve for x
    x = 324,569,575.64/19,695.67
  6. Step 6: Final answer
    x = 16,479.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.