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Finding the Fourth Proportional to 8,965.37, 12,372.04 and 4,985.98

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Solution

The fourth proportional to 8,965.37, 12,372.04 and 4,985.98 is: 6,880.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.37 : 12,372.04 = 4,985.98 : x
  2. Step 2: Convert to fraction form
    8,965.37/12,372.04 = 4,985.98/x
  3. Step 3: Cross multiply
    8,965.37x = 12,372.04 × 4,985.98
  4. Step 4: Simplify right side
    8,965.37x = 61,686,744.00
  5. Step 5: Solve for x
    x = 61,686,744.00/8,965.37
  6. Step 6: Final answer
    x = 6,880.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.