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Finding the Fourth Proportional to 9,261.72, 13,880.50 and 8,088.94

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Solution

The fourth proportional to 9,261.72, 13,880.50 and 8,088.94 is: 12,122.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.72 : 13,880.50 = 8,088.94 : x
  2. Step 2: Convert to fraction form
    9,261.72/13,880.50 = 8,088.94/x
  3. Step 3: Cross multiply
    9,261.72x = 13,880.50 × 8,088.94
  4. Step 4: Simplify right side
    9,261.72x = 112,278,531.67
  5. Step 5: Solve for x
    x = 112,278,531.67/9,261.72
  6. Step 6: Final answer
    x = 12,122.86

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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.