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Finding the Fourth Proportional to 52,857.44, 79,130.63 and 35,283.68

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Solution

The fourth proportional to 52,857.44, 79,130.63 and 35,283.68 is: 52,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,857.44 : 79,130.63 = 35,283.68 : x
  2. Step 2: Convert to fraction form
    52,857.44/79,130.63 = 35,283.68/x
  3. Step 3: Cross multiply
    52,857.44x = 79,130.63 × 35,283.68
  4. Step 4: Simplify right side
    52,857.44x = 2,792,019,519.67
  5. Step 5: Solve for x
    x = 2,792,019,519.67/52,857.44
  6. Step 6: Final answer
    x = 52,821.70

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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.