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Finding the Fourth Proportional to 7,745.79, 10,690.89 and 5,093.45

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Solution

The fourth proportional to 7,745.79, 10,690.89 and 5,093.45 is: 7,030.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.79 : 10,690.89 = 5,093.45 : x
  2. Step 2: Convert to fraction form
    7,745.79/10,690.89 = 5,093.45/x
  3. Step 3: Cross multiply
    7,745.79x = 10,690.89 × 5,093.45
  4. Step 4: Simplify right side
    7,745.79x = 54,453,460.22
  5. Step 5: Solve for x
    x = 54,453,460.22/7,745.79
  6. Step 6: Final answer
    x = 7,030.07

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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.