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Finding the Fourth Proportional to 8,838.48, 13,228.56 and 7,866.48

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Solution

The fourth proportional to 8,838.48, 13,228.56 and 7,866.48 is: 11,773.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,838.48 : 13,228.56 = 7,866.48 : x
  2. Step 2: Convert to fraction form
    8,838.48/13,228.56 = 7,866.48/x
  3. Step 3: Cross multiply
    8,838.48x = 13,228.56 × 7,866.48
  4. Step 4: Simplify right side
    8,838.48x = 104,062,202.67
  5. Step 5: Solve for x
    x = 104,062,202.67/8,838.48
  6. Step 6: Final answer
    x = 11,773.77

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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.