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Finding the Fourth Proportional to 64,922.44, 97,373.88 and 20,543.42

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Solution

The fourth proportional to 64,922.44, 97,373.88 and 20,543.42 is: 30,812.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,922.44 : 97,373.88 = 20,543.42 : x
  2. Step 2: Convert to fraction form
    64,922.44/97,373.88 = 20,543.42/x
  3. Step 3: Cross multiply
    64,922.44x = 97,373.88 × 20,543.42
  4. Step 4: Simplify right side
    64,922.44x = 2,000,392,513.87
  5. Step 5: Solve for x
    x = 2,000,392,513.87/64,922.44
  6. Step 6: Final answer
    x = 30,812.04

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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.