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Finding the Fourth Proportional to 8,796.98, 12,137.64 and 5,395.80

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Solution

The fourth proportional to 8,796.98, 12,137.64 and 5,395.80 is: 7,444.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,796.98 : 12,137.64 = 5,395.80 : x
  2. Step 2: Convert to fraction form
    8,796.98/12,137.64 = 5,395.80/x
  3. Step 3: Cross multiply
    8,796.98x = 12,137.64 × 5,395.80
  4. Step 4: Simplify right side
    8,796.98x = 65,492,277.91
  5. Step 5: Solve for x
    x = 65,492,277.91/8,796.98
  6. Step 6: Final answer
    x = 7,444.86

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1.5x scale

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.