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Finding the Fourth Proportional to 8,977.37, 13,472.21 and 3,133.98

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Solution

The fourth proportional to 8,977.37, 13,472.21 and 3,133.98 is: 4,703.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.37 : 13,472.21 = 3,133.98 : x
  2. Step 2: Convert to fraction form
    8,977.37/13,472.21 = 3,133.98/x
  3. Step 3: Cross multiply
    8,977.37x = 13,472.21 × 3,133.98
  4. Step 4: Simplify right side
    8,977.37x = 42,221,621.03
  5. Step 5: Solve for x
    x = 42,221,621.03/8,977.37
  6. Step 6: Final answer
    x = 4,703.12

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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.