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Finding the Fourth Proportional to 7,933.32, 11,830.14 and 7,379.28

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Solution

The fourth proportional to 7,933.32, 11,830.14 and 7,379.28 is: 11,003.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,933.32 : 11,830.14 = 7,379.28 : x
  2. Step 2: Convert to fraction form
    7,933.32/11,830.14 = 7,379.28/x
  3. Step 3: Cross multiply
    7,933.32x = 11,830.14 × 7,379.28
  4. Step 4: Simplify right side
    7,933.32x = 87,297,915.50
  5. Step 5: Solve for x
    x = 87,297,915.50/7,933.32
  6. Step 6: Final answer
    x = 11,003.96

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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.