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Finding the Fourth Proportional to 7,651.98, 10,555.26 and 4,814.88

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Solution

The fourth proportional to 7,651.98, 10,555.26 and 4,814.88 is: 6,641.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.98 : 10,555.26 = 4,814.88 : x
  2. Step 2: Convert to fraction form
    7,651.98/10,555.26 = 4,814.88/x
  3. Step 3: Cross multiply
    7,651.98x = 10,555.26 × 4,814.88
  4. Step 4: Simplify right side
    7,651.98x = 50,822,310.27
  5. Step 5: Solve for x
    x = 50,822,310.27/7,651.98
  6. Step 6: Final answer
    x = 6,641.72

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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.