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Finding the Fourth Proportional to 8,551.95, 12,820.32 and 4,605.36

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Solution

The fourth proportional to 8,551.95, 12,820.32 and 4,605.36 is: 6,903.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.95 : 12,820.32 = 4,605.36 : x
  2. Step 2: Convert to fraction form
    8,551.95/12,820.32 = 4,605.36/x
  3. Step 3: Cross multiply
    8,551.95x = 12,820.32 × 4,605.36
  4. Step 4: Simplify right side
    8,551.95x = 59,042,188.92
  5. Step 5: Solve for x
    x = 59,042,188.92/8,551.95
  6. Step 6: Final answer
    x = 6,903.94

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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.