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Finding the Fourth Proportional to 52,966.36, 79,375.73 and 39,803.36

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Solution

The fourth proportional to 52,966.36, 79,375.73 and 39,803.36 is: 59,649.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,966.36 : 79,375.73 = 39,803.36 : x
  2. Step 2: Convert to fraction form
    52,966.36/79,375.73 = 39,803.36/x
  3. Step 3: Cross multiply
    52,966.36x = 79,375.73 × 39,803.36
  4. Step 4: Simplify right side
    52,966.36x = 3,159,420,756.45
  5. Step 5: Solve for x
    x = 3,159,420,756.45/52,966.36
  6. Step 6: Final answer
    x = 59,649.57

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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.