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Finding the Fourth Proportional to 18,360.55, 27,542.53 and 6,513.16

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Solution

The fourth proportional to 18,360.55, 27,542.53 and 6,513.16 is: 9,770.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.55 : 27,542.53 = 6,513.16 : x
  2. Step 2: Convert to fraction form
    18,360.55/27,542.53 = 6,513.16/x
  3. Step 3: Cross multiply
    18,360.55x = 27,542.53 × 6,513.16
  4. Step 4: Simplify right side
    18,360.55x = 179,388,895.62
  5. Step 5: Solve for x
    x = 179,388,895.62/18,360.55
  6. Step 6: Final answer
    x = 9,770.35

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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.