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Finding the Fourth Proportional to 18,004.95, 25,174.13 and 18,004.95

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Solution

The fourth proportional to 18,004.95, 25,174.13 and 18,004.95 is: 25,174.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.95 : 25,174.13 = 18,004.95 : x
  2. Step 2: Convert to fraction form
    18,004.95/25,174.13 = 18,004.95/x
  3. Step 3: Cross multiply
    18,004.95x = 25,174.13 × 18,004.95
  4. Step 4: Simplify right side
    18,004.95x = 453,258,861.92
  5. Step 5: Solve for x
    x = 453,258,861.92/18,004.95
  6. Step 6: Final answer
    x = 25,174.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.