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Finding the Fourth Proportional to 8,830.44, 13,228.68 and 7,079.28

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Solution

The fourth proportional to 8,830.44, 13,228.68 and 7,079.28 is: 10,605.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,830.44 : 13,228.68 = 7,079.28 : x
  2. Step 2: Convert to fraction form
    8,830.44/13,228.68 = 7,079.28/x
  3. Step 3: Cross multiply
    8,830.44x = 13,228.68 × 7,079.28
  4. Step 4: Simplify right side
    8,830.44x = 93,649,529.75
  5. Step 5: Solve for x
    x = 93,649,529.75/8,830.44
  6. Step 6: Final answer
    x = 10,605.31

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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.