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Finding the Fourth Proportional to 8,458.41, 11,673.33 and 4,921.38

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Solution

The fourth proportional to 8,458.41, 11,673.33 and 4,921.38 is: 6,791.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.41 : 11,673.33 = 4,921.38 : x
  2. Step 2: Convert to fraction form
    8,458.41/11,673.33 = 4,921.38/x
  3. Step 3: Cross multiply
    8,458.41x = 11,673.33 × 4,921.38
  4. Step 4: Simplify right side
    8,458.41x = 57,448,892.80
  5. Step 5: Solve for x
    x = 57,448,892.80/8,458.41
  6. Step 6: Final answer
    x = 6,791.93

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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.