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Finding the Fourth Proportional to 8,809.98, 13,216.86 and 2,966.51

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Solution

The fourth proportional to 8,809.98, 13,216.86 and 2,966.51 is: 4,450.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.98 : 13,216.86 = 2,966.51 : x
  2. Step 2: Convert to fraction form
    8,809.98/13,216.86 = 2,966.51/x
  3. Step 3: Cross multiply
    8,809.98x = 13,216.86 × 2,966.51
  4. Step 4: Simplify right side
    8,809.98x = 39,207,881.27
  5. Step 5: Solve for x
    x = 39,207,881.27/8,809.98
  6. Step 6: Final answer
    x = 4,450.39

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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.