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Finding the Fourth Proportional to 18,095.55, 27,147.87 and 6,999.23

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Solution

The fourth proportional to 18,095.55, 27,147.87 and 6,999.23 is: 10,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,095.55 : 27,147.87 = 6,999.23 : x
  2. Step 2: Convert to fraction form
    18,095.55/27,147.87 = 6,999.23/x
  3. Step 3: Cross multiply
    18,095.55x = 27,147.87 × 6,999.23
  4. Step 4: Simplify right side
    18,095.55x = 190,014,050.40
  5. Step 5: Solve for x
    x = 190,014,050.40/18,095.55
  6. Step 6: Final answer
    x = 10,500.60

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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.