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Finding the Fourth Proportional to 52,756.37, 79,142.37 and 15,316.75

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Solution

The fourth proportional to 52,756.37, 79,142.37 and 15,316.75 is: 22,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,756.37 : 79,142.37 = 15,316.75 : x
  2. Step 2: Convert to fraction form
    52,756.37/79,142.37 = 15,316.75/x
  3. Step 3: Cross multiply
    52,756.37x = 79,142.37 × 15,316.75
  4. Step 4: Simplify right side
    52,756.37x = 1,212,203,895.70
  5. Step 5: Solve for x
    x = 1,212,203,895.70/52,756.37
  6. Step 6: Final answer
    x = 22,977.39

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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.