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Finding the Fourth Proportional to 7,757.52, 10,705.04 and 4,400.48

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Solution

The fourth proportional to 7,757.52, 10,705.04 and 4,400.48 is: 6,072.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,757.52 : 10,705.04 = 4,400.48 : x
  2. Step 2: Convert to fraction form
    7,757.52/10,705.04 = 4,400.48/x
  3. Step 3: Cross multiply
    7,757.52x = 10,705.04 × 4,400.48
  4. Step 4: Simplify right side
    7,757.52x = 47,107,314.42
  5. Step 5: Solve for x
    x = 47,107,314.42/7,757.52
  6. Step 6: Final answer
    x = 6,072.47

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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.