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Finding the Fourth Proportional to 18,482.61, 27,737.27 and 7,392.39

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Solution

The fourth proportional to 18,482.61, 27,737.27 and 7,392.39 is: 11,093.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.61 : 27,737.27 = 7,392.39 : x
  2. Step 2: Convert to fraction form
    18,482.61/27,737.27 = 7,392.39/x
  3. Step 3: Cross multiply
    18,482.61x = 27,737.27 × 7,392.39
  4. Step 4: Simplify right side
    18,482.61x = 205,044,713.32
  5. Step 5: Solve for x
    x = 205,044,713.32/18,482.61
  6. Step 6: Final answer
    x = 11,093.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.