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Finding the Fourth Proportional to 9,264.81, 12,759.77 and 8,005.47

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Solution

The fourth proportional to 9,264.81, 12,759.77 and 8,005.47 is: 11,025.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,264.81 : 12,759.77 = 8,005.47 : x
  2. Step 2: Convert to fraction form
    9,264.81/12,759.77 = 8,005.47/x
  3. Step 3: Cross multiply
    9,264.81x = 12,759.77 × 8,005.47
  4. Step 4: Simplify right side
    9,264.81x = 102,147,915.91
  5. Step 5: Solve for x
    x = 102,147,915.91/9,264.81
  6. Step 6: Final answer
    x = 11,025.37

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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.