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Finding the Fourth Proportional to 9,504.60, 13,086.36 and 8,085.48

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Solution

The fourth proportional to 9,504.60, 13,086.36 and 8,085.48 is: 11,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,504.60 : 13,086.36 = 8,085.48 : x
  2. Step 2: Convert to fraction form
    9,504.60/13,086.36 = 8,085.48/x
  3. Step 3: Cross multiply
    9,504.60x = 13,086.36 × 8,085.48
  4. Step 4: Simplify right side
    9,504.60x = 105,809,502.05
  5. Step 5: Solve for x
    x = 105,809,502.05/9,504.60
  6. Step 6: Final answer
    x = 11,132.45

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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.