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Finding the Fourth Proportional to 7,176.01, 9,910.46 and 6,393.30

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Solution

The fourth proportional to 7,176.01, 9,910.46 and 6,393.30 is: 8,829.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.01 : 9,910.46 = 6,393.30 : x
  2. Step 2: Convert to fraction form
    7,176.01/9,910.46 = 6,393.30/x
  3. Step 3: Cross multiply
    7,176.01x = 9,910.46 × 6,393.30
  4. Step 4: Simplify right side
    7,176.01x = 63,360,511.95
  5. Step 5: Solve for x
    x = 63,360,511.95/7,176.01
  6. Step 6: Final answer
    x = 8,829.49

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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.