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Finding the Fourth Proportional to 35,720.92, 53,543.71 and 14,651.61

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Solution

The fourth proportional to 35,720.92, 53,543.71 and 14,651.61 is: 21,961.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,720.92 : 53,543.71 = 14,651.61 : x
  2. Step 2: Convert to fraction form
    35,720.92/53,543.71 = 14,651.61/x
  3. Step 3: Cross multiply
    35,720.92x = 53,543.71 × 14,651.61
  4. Step 4: Simplify right side
    35,720.92x = 784,501,556.87
  5. Step 5: Solve for x
    x = 784,501,556.87/35,720.92
  6. Step 6: Final answer
    x = 21,961.96

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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.