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Finding the Fourth Proportional to 6,300.60, 8,685 and 4,201.08

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Solution

The fourth proportional to 6,300.60, 8,685 and 4,201.08 is: 5,790.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,300.60 : 8,685 = 4,201.08 : x
  2. Step 2: Convert to fraction form
    6,300.60/8,685 = 4,201.08/x
  3. Step 3: Cross multiply
    6,300.60x = 8,685 × 4,201.08
  4. Step 4: Simplify right side
    6,300.60x = 36,486,379.80
  5. Step 5: Solve for x
    x = 36,486,379.80/6,300.60
  6. Step 6: Final answer
    x = 5,790.94

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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.