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Finding the Fourth Proportional to 7,755.44, 10,698.36 and 5,393.48

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Solution

The fourth proportional to 7,755.44, 10,698.36 and 5,393.48 is: 7,440.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.44 : 10,698.36 = 5,393.48 : x
  2. Step 2: Convert to fraction form
    7,755.44/10,698.36 = 5,393.48/x
  3. Step 3: Cross multiply
    7,755.44x = 10,698.36 × 5,393.48
  4. Step 4: Simplify right side
    7,755.44x = 57,701,390.69
  5. Step 5: Solve for x
    x = 57,701,390.69/7,755.44
  6. Step 6: Final answer
    x = 7,440.12

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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.