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Finding the Fourth Proportional to 12,070.88, 16,658.64 and 6,765.60

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Solution

The fourth proportional to 12,070.88, 16,658.64 and 6,765.60 is: 9,336.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.88 : 16,658.64 = 6,765.60 : x
  2. Step 2: Convert to fraction form
    12,070.88/16,658.64 = 6,765.60/x
  3. Step 3: Cross multiply
    12,070.88x = 16,658.64 × 6,765.60
  4. Step 4: Simplify right side
    12,070.88x = 112,705,694.78
  5. Step 5: Solve for x
    x = 112,705,694.78/12,070.88
  6. Step 6: Final answer
    x = 9,336.99

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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.