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Finding the Fourth Proportional to 18,245.90, 27,363.98 and 9,355.34

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Solution

The fourth proportional to 18,245.90, 27,363.98 and 9,355.34 is: 14,030.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.90 : 27,363.98 = 9,355.34 : x
  2. Step 2: Convert to fraction form
    18,245.90/27,363.98 = 9,355.34/x
  3. Step 3: Cross multiply
    18,245.90x = 27,363.98 × 9,355.34
  4. Step 4: Simplify right side
    18,245.90x = 255,999,336.65
  5. Step 5: Solve for x
    x = 255,999,336.65/18,245.90
  6. Step 6: Final answer
    x = 14,030.51

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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.