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Finding the Fourth Proportional to 18,384.57, 27,585.97 and 7,291.02

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Solution

The fourth proportional to 18,384.57, 27,585.97 and 7,291.02 is: 10,940.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.57 : 27,585.97 = 7,291.02 : x
  2. Step 2: Convert to fraction form
    18,384.57/27,585.97 = 7,291.02/x
  3. Step 3: Cross multiply
    18,384.57x = 27,585.97 × 7,291.02
  4. Step 4: Simplify right side
    18,384.57x = 201,129,858.99
  5. Step 5: Solve for x
    x = 201,129,858.99/18,384.57
  6. Step 6: Final answer
    x = 10,940.14

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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.