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Finding the Fourth Proportional to 6,645.65, 9,164.84 and 4,850.29

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Solution

The fourth proportional to 6,645.65, 9,164.84 and 4,850.29 is: 6,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.65 : 9,164.84 = 4,850.29 : x
  2. Step 2: Convert to fraction form
    6,645.65/9,164.84 = 4,850.29/x
  3. Step 3: Cross multiply
    6,645.65x = 9,164.84 × 4,850.29
  4. Step 4: Simplify right side
    6,645.65x = 44,452,108.89
  5. Step 5: Solve for x
    x = 44,452,108.89/6,645.65
  6. Step 6: Final answer
    x = 6,688.90

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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.