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Finding the Fourth Proportional to 35,245.70, 52,868.19 and 11,871.98

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Solution

The fourth proportional to 35,245.70, 52,868.19 and 11,871.98 is: 17,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,245.70 : 52,868.19 = 11,871.98 : x
  2. Step 2: Convert to fraction form
    35,245.70/52,868.19 = 11,871.98/x
  3. Step 3: Cross multiply
    35,245.70x = 52,868.19 × 11,871.98
  4. Step 4: Simplify right side
    35,245.70x = 627,650,094.32
  5. Step 5: Solve for x
    x = 627,650,094.32/35,245.70
  6. Step 6: Final answer
    x = 17,807.85

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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.