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Finding the Fourth Proportional to 8,736.24, 13,172.94 and 8,010.48

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Solution

The fourth proportional to 8,736.24, 13,172.94 and 8,010.48 is: 12,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.24 : 13,172.94 = 8,010.48 : x
  2. Step 2: Convert to fraction form
    8,736.24/13,172.94 = 8,010.48/x
  3. Step 3: Cross multiply
    8,736.24x = 13,172.94 × 8,010.48
  4. Step 4: Simplify right side
    8,736.24x = 105,521,572.41
  5. Step 5: Solve for x
    x = 105,521,572.41/8,736.24
  6. Step 6: Final answer
    x = 12,078.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.