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Finding the Fourth Proportional to 8,458.98, 11,674.79 and 5,804.21

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Solution

The fourth proportional to 8,458.98, 11,674.79 and 5,804.21 is: 8,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.98 : 11,674.79 = 5,804.21 : x
  2. Step 2: Convert to fraction form
    8,458.98/11,674.79 = 5,804.21/x
  3. Step 3: Cross multiply
    8,458.98x = 11,674.79 × 5,804.21
  4. Step 4: Simplify right side
    8,458.98x = 67,762,845.47
  5. Step 5: Solve for x
    x = 67,762,845.47/8,458.98
  6. Step 6: Final answer
    x = 8,010.76

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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.