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Finding the Fourth Proportional to 8,466.87, 11,684.99 and 4,929.87

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Solution

The fourth proportional to 8,466.87, 11,684.99 and 4,929.87 is: 6,803.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.87 : 11,684.99 = 4,929.87 : x
  2. Step 2: Convert to fraction form
    8,466.87/11,684.99 = 4,929.87/x
  3. Step 3: Cross multiply
    8,466.87x = 11,684.99 × 4,929.87
  4. Step 4: Simplify right side
    8,466.87x = 57,605,457.00
  5. Step 5: Solve for x
    x = 57,605,457.00/8,466.87
  6. Step 6: Final answer
    x = 6,803.63

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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.