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Finding the Fourth Proportional to 8,313.75, 12,473.10 and 4,802.90

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Solution

The fourth proportional to 8,313.75, 12,473.10 and 4,802.90 is: 7,205.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.75 : 12,473.10 = 4,802.90 : x
  2. Step 2: Convert to fraction form
    8,313.75/12,473.10 = 4,802.90/x
  3. Step 3: Cross multiply
    8,313.75x = 12,473.10 × 4,802.90
  4. Step 4: Simplify right side
    8,313.75x = 59,906,989.62
  5. Step 5: Solve for x
    x = 59,906,989.62/8,313.75
  6. Step 6: Final answer
    x = 7,205.77

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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.