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Finding the Fourth Proportional to 8,625.65, 12,938.47 and 5,567.09

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Solution

The fourth proportional to 8,625.65, 12,938.47 and 5,567.09 is: 8,350.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,625.65 : 12,938.47 = 5,567.09 : x
  2. Step 2: Convert to fraction form
    8,625.65/12,938.47 = 5,567.09/x
  3. Step 3: Cross multiply
    8,625.65x = 12,938.47 × 5,567.09
  4. Step 4: Simplify right side
    8,625.65x = 72,029,548.34
  5. Step 5: Solve for x
    x = 72,029,548.34/8,625.65
  6. Step 6: Final answer
    x = 8,350.63

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Similar ratio
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1.5x scale

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.