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Finding the Fourth Proportional to 9,365.85, 14,047.22 and 2,790.50

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Solution

The fourth proportional to 9,365.85, 14,047.22 and 2,790.50 is: 4,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,365.85 : 14,047.22 = 2,790.50 : x
  2. Step 2: Convert to fraction form
    9,365.85/14,047.22 = 2,790.50/x
  3. Step 3: Cross multiply
    9,365.85x = 14,047.22 × 2,790.50
  4. Step 4: Simplify right side
    9,365.85x = 39,198,704.15
  5. Step 5: Solve for x
    x = 39,198,704.15/9,365.85
  6. Step 6: Final answer
    x = 4,185.28

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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.