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Finding the Fourth Proportional to 43,403.79, 65,108.22 and 16,749.93

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Solution

The fourth proportional to 43,403.79, 65,108.22 and 16,749.93 is: 25,125.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,403.79 : 65,108.22 = 16,749.93 : x
  2. Step 2: Convert to fraction form
    43,403.79/65,108.22 = 16,749.93/x
  3. Step 3: Cross multiply
    43,403.79x = 65,108.22 × 16,749.93
  4. Step 4: Simplify right side
    43,403.79x = 1,090,558,127.42
  5. Step 5: Solve for x
    x = 1,090,558,127.42/43,403.79
  6. Step 6: Final answer
    x = 25,125.87

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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.