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Finding the Fourth Proportional to 52,717.68, 72,747.72 and 30,057.60

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Solution

The fourth proportional to 52,717.68, 72,747.72 and 30,057.60 is: 41,477.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,717.68 : 72,747.72 = 30,057.60 : x
  2. Step 2: Convert to fraction form
    52,717.68/72,747.72 = 30,057.60/x
  3. Step 3: Cross multiply
    52,717.68x = 72,747.72 × 30,057.60
  4. Step 4: Simplify right side
    52,717.68x = 2,186,621,868.67
  5. Step 5: Solve for x
    x = 2,186,621,868.67/52,717.68
  6. Step 6: Final answer
    x = 41,477.96

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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.