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Finding the Fourth Proportional to 18,598.59, 25,665.80 and 11,526.75

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Solution

The fourth proportional to 18,598.59, 25,665.80 and 11,526.75 is: 15,906.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,598.59 : 25,665.80 = 11,526.75 : x
  2. Step 2: Convert to fraction form
    18,598.59/25,665.80 = 11,526.75/x
  3. Step 3: Cross multiply
    18,598.59x = 25,665.80 × 11,526.75
  4. Step 4: Simplify right side
    18,598.59x = 295,843,202.52
  5. Step 5: Solve for x
    x = 295,843,202.52/18,598.59
  6. Step 6: Final answer
    x = 15,906.75

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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.