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Finding the Fourth Proportional to 7,755.74, 10,698.57 and 5,063.15

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Solution

The fourth proportional to 7,755.74, 10,698.57 and 5,063.15 is: 6,984.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.74 : 10,698.57 = 5,063.15 : x
  2. Step 2: Convert to fraction form
    7,755.74/10,698.57 = 5,063.15/x
  3. Step 3: Cross multiply
    7,755.74x = 10,698.57 × 5,063.15
  4. Step 4: Simplify right side
    7,755.74x = 54,168,464.70
  5. Step 5: Solve for x
    x = 54,168,464.70/7,755.74
  6. Step 6: Final answer
    x = 6,984.31

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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.