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Finding the Fourth Proportional to 5,605.56, 7,733.40 and 3,718.08

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Solution

The fourth proportional to 5,605.56, 7,733.40 and 3,718.08 is: 5,129.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.56 : 7,733.40 = 3,718.08 : x
  2. Step 2: Convert to fraction form
    5,605.56/7,733.40 = 3,718.08/x
  3. Step 3: Cross multiply
    5,605.56x = 7,733.40 × 3,718.08
  4. Step 4: Simplify right side
    5,605.56x = 28,753,399.87
  5. Step 5: Solve for x
    x = 28,753,399.87/5,605.56
  6. Step 6: Final answer
    x = 5,129.44

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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.