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Finding the Fourth Proportional to 5,469.15, 8,210.22 and 5,246.34

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Solution

The fourth proportional to 5,469.15, 8,210.22 and 5,246.34 is: 7,875.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,469.15 : 8,210.22 = 5,246.34 : x
  2. Step 2: Convert to fraction form
    5,469.15/8,210.22 = 5,246.34/x
  3. Step 3: Cross multiply
    5,469.15x = 8,210.22 × 5,246.34
  4. Step 4: Simplify right side
    5,469.15x = 43,073,605.59
  5. Step 5: Solve for x
    x = 43,073,605.59/5,469.15
  6. Step 6: Final answer
    x = 7,875.74

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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.