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Finding the Fourth Proportional to 5,615.06, 7,751.90 and 3,377.48

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Solution

The fourth proportional to 5,615.06, 7,751.90 and 3,377.48 is: 4,662.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.06 : 7,751.90 = 3,377.48 : x
  2. Step 2: Convert to fraction form
    5,615.06/7,751.90 = 3,377.48/x
  3. Step 3: Cross multiply
    5,615.06x = 7,751.90 × 3,377.48
  4. Step 4: Simplify right side
    5,615.06x = 26,181,887.21
  5. Step 5: Solve for x
    x = 26,181,887.21/5,615.06
  6. Step 6: Final answer
    x = 4,662.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.