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Finding the Fourth Proportional to 8,588.88, 12,883.20 and 6,868.32

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Solution

The fourth proportional to 8,588.88, 12,883.20 and 6,868.32 is: 10,302.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.88 : 12,883.20 = 6,868.32 : x
  2. Step 2: Convert to fraction form
    8,588.88/12,883.20 = 6,868.32/x
  3. Step 3: Cross multiply
    8,588.88x = 12,883.20 × 6,868.32
  4. Step 4: Simplify right side
    8,588.88x = 88,485,940.22
  5. Step 5: Solve for x
    x = 88,485,940.22/8,588.88
  6. Step 6: Final answer
    x = 10,302.38

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1.5x scale

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.