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Finding the Fourth Proportional to 18,002.62, 26,985.46 and 6,906.32

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Solution

The fourth proportional to 18,002.62, 26,985.46 and 6,906.32 is: 10,352.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,002.62 : 26,985.46 = 6,906.32 : x
  2. Step 2: Convert to fraction form
    18,002.62/26,985.46 = 6,906.32/x
  3. Step 3: Cross multiply
    18,002.62x = 26,985.46 × 6,906.32
  4. Step 4: Simplify right side
    18,002.62x = 186,370,222.11
  5. Step 5: Solve for x
    x = 186,370,222.11/18,002.62
  6. Step 6: Final answer
    x = 10,352.39

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1.5x scale

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.