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Finding the Fourth Proportional to 18,597.05, 25,656.50 and 11,880.93

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Solution

The fourth proportional to 18,597.05, 25,656.50 and 11,880.93 is: 16,390.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.05 : 25,656.50 = 11,880.93 : x
  2. Step 2: Convert to fraction form
    18,597.05/25,656.50 = 11,880.93/x
  3. Step 3: Cross multiply
    18,597.05x = 25,656.50 × 11,880.93
  4. Step 4: Simplify right side
    18,597.05x = 304,823,021.14
  5. Step 5: Solve for x
    x = 304,823,021.14/18,597.05
  6. Step 6: Final answer
    x = 16,390.94

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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.