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Finding the Fourth Proportional to 8,765.26, 12,096.93 and 5,228.47

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Solution

The fourth proportional to 8,765.26, 12,096.93 and 5,228.47 is: 7,215.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.26 : 12,096.93 = 5,228.47 : x
  2. Step 2: Convert to fraction form
    8,765.26/12,096.93 = 5,228.47/x
  3. Step 3: Cross multiply
    8,765.26x = 12,096.93 × 5,228.47
  4. Step 4: Simplify right side
    8,765.26x = 63,248,403.90
  5. Step 5: Solve for x
    x = 63,248,403.90/8,765.26
  6. Step 6: Final answer
    x = 7,215.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.