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Finding the Fourth Proportional to 9,792.68, 14,679.90 and 7,338.12

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Solution

The fourth proportional to 9,792.68, 14,679.90 and 7,338.12 is: 11,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,792.68 : 14,679.90 = 7,338.12 : x
  2. Step 2: Convert to fraction form
    9,792.68/14,679.90 = 7,338.12/x
  3. Step 3: Cross multiply
    9,792.68x = 14,679.90 × 7,338.12
  4. Step 4: Simplify right side
    9,792.68x = 107,722,867.79
  5. Step 5: Solve for x
    x = 107,722,867.79/9,792.68
  6. Step 6: Final answer
    x = 11,000.35

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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.