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Finding the Fourth Proportional to 9,908.62, 14,865.40 and 6,992.62

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Solution

The fourth proportional to 9,908.62, 14,865.40 and 6,992.62 is: 10,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,908.62 : 14,865.40 = 6,992.62 : x
  2. Step 2: Convert to fraction form
    9,908.62/14,865.40 = 6,992.62/x
  3. Step 3: Cross multiply
    9,908.62x = 14,865.40 × 6,992.62
  4. Step 4: Simplify right side
    9,908.62x = 103,948,093.35
  5. Step 5: Solve for x
    x = 103,948,093.35/9,908.62
  6. Step 6: Final answer
    x = 10,490.67

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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.