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Finding the Fourth Proportional to 18,597.90, 25,656.50 and 11,039.94

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Solution

The fourth proportional to 18,597.90, 25,656.50 and 11,039.94 is: 15,230.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.90 : 25,656.50 = 11,039.94 : x
  2. Step 2: Convert to fraction form
    18,597.90/25,656.50 = 11,039.94/x
  3. Step 3: Cross multiply
    18,597.90x = 25,656.50 × 11,039.94
  4. Step 4: Simplify right side
    18,597.90x = 283,246,165.41
  5. Step 5: Solve for x
    x = 283,246,165.41/18,597.90
  6. Step 6: Final answer
    x = 15,230.01

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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.