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Finding the Fourth Proportional to 18,352.54, 27,529.98 and 7,816.60

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Solution

The fourth proportional to 18,352.54, 27,529.98 and 7,816.60 is: 11,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,352.54 : 27,529.98 = 7,816.60 : x
  2. Step 2: Convert to fraction form
    18,352.54/27,529.98 = 7,816.60/x
  3. Step 3: Cross multiply
    18,352.54x = 27,529.98 × 7,816.60
  4. Step 4: Simplify right side
    18,352.54x = 215,190,841.67
  5. Step 5: Solve for x
    x = 215,190,841.67/18,352.54
  6. Step 6: Final answer
    x = 11,725.40

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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.