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Finding the Fourth Proportional to 8,551.47, 11,805.94 and 6,518.93

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Solution

The fourth proportional to 8,551.47, 11,805.94 and 6,518.93 is: 8,999.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.47 : 11,805.94 = 6,518.93 : x
  2. Step 2: Convert to fraction form
    8,551.47/11,805.94 = 6,518.93/x
  3. Step 3: Cross multiply
    8,551.47x = 11,805.94 × 6,518.93
  4. Step 4: Simplify right side
    8,551.47x = 76,962,096.44
  5. Step 5: Solve for x
    x = 76,962,096.44/8,551.47
  6. Step 6: Final answer
    x = 8,999.87

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1.5x scale

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.