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Finding the Fourth Proportional to 9,992.75, 14,913.13 and 8,885.62

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Solution

The fourth proportional to 9,992.75, 14,913.13 and 8,885.62 is: 13,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.75 : 14,913.13 = 8,885.62 : x
  2. Step 2: Convert to fraction form
    9,992.75/14,913.13 = 8,885.62/x
  3. Step 3: Cross multiply
    9,992.75x = 14,913.13 × 8,885.62
  4. Step 4: Simplify right side
    9,992.75x = 132,512,406.19
  5. Step 5: Solve for x
    x = 132,512,406.19/9,992.75
  6. Step 6: Final answer
    x = 13,260.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.