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Finding the Fourth Proportional to 8,409.50, 11,605.11 and 4,683.50

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Solution

The fourth proportional to 8,409.50, 11,605.11 and 4,683.50 is: 6,463.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.50 : 11,605.11 = 4,683.50 : x
  2. Step 2: Convert to fraction form
    8,409.50/11,605.11 = 4,683.50/x
  3. Step 3: Cross multiply
    8,409.50x = 11,605.11 × 4,683.50
  4. Step 4: Simplify right side
    8,409.50x = 54,352,532.69
  5. Step 5: Solve for x
    x = 54,352,532.69/8,409.50
  6. Step 6: Final answer
    x = 6,463.23

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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.