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Finding the Fourth Proportional to 8,717.34, 13,092.81 and 7,470.75

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Solution

The fourth proportional to 8,717.34, 13,092.81 and 7,470.75 is: 11,220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.34 : 13,092.81 = 7,470.75 : x
  2. Step 2: Convert to fraction form
    8,717.34/13,092.81 = 7,470.75/x
  3. Step 3: Cross multiply
    8,717.34x = 13,092.81 × 7,470.75
  4. Step 4: Simplify right side
    8,717.34x = 97,813,110.31
  5. Step 5: Solve for x
    x = 97,813,110.31/8,717.34
  6. Step 6: Final answer
    x = 11,220.52

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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.