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Finding the Fourth Proportional to 8,672.22, 13,011.93 and 4,776.30

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Solution

The fourth proportional to 8,672.22, 13,011.93 and 4,776.30 is: 7,166.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.22 : 13,011.93 = 4,776.30 : x
  2. Step 2: Convert to fraction form
    8,672.22/13,011.93 = 4,776.30/x
  3. Step 3: Cross multiply
    8,672.22x = 13,011.93 × 4,776.30
  4. Step 4: Simplify right side
    8,672.22x = 62,148,881.26
  5. Step 5: Solve for x
    x = 62,148,881.26/8,672.22
  6. Step 6: Final answer
    x = 7,166.43

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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.