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Finding the Fourth Proportional to 18,036.94, 24,893.71 and 10,961.99

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Solution

The fourth proportional to 18,036.94, 24,893.71 and 10,961.99 is: 15,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,036.94 : 24,893.71 = 10,961.99 : x
  2. Step 2: Convert to fraction form
    18,036.94/24,893.71 = 10,961.99/x
  3. Step 3: Cross multiply
    18,036.94x = 24,893.71 × 10,961.99
  4. Step 4: Simplify right side
    18,036.94x = 272,884,634.91
  5. Step 5: Solve for x
    x = 272,884,634.91/18,036.94
  6. Step 6: Final answer
    x = 15,129.21

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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.