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Finding the Fourth Proportional to 7,751.80, 11,625.63 and 3,368.22

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Solution

The fourth proportional to 7,751.80, 11,625.63 and 3,368.22 is: 5,051.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.80 : 11,625.63 = 3,368.22 : x
  2. Step 2: Convert to fraction form
    7,751.80/11,625.63 = 3,368.22/x
  3. Step 3: Cross multiply
    7,751.80x = 11,625.63 × 3,368.22
  4. Step 4: Simplify right side
    7,751.80x = 39,157,679.48
  5. Step 5: Solve for x
    x = 39,157,679.48/7,751.80
  6. Step 6: Final answer
    x = 5,051.43

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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.