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Finding the Fourth Proportional to 8,454.03, 11,661.87 and 4,916.85

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Solution

The fourth proportional to 8,454.03, 11,661.87 and 4,916.85 is: 6,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.03 : 11,661.87 = 4,916.85 : x
  2. Step 2: Convert to fraction form
    8,454.03/11,661.87 = 4,916.85/x
  3. Step 3: Cross multiply
    8,454.03x = 11,661.87 × 4,916.85
  4. Step 4: Simplify right side
    8,454.03x = 57,339,665.51
  5. Step 5: Solve for x
    x = 57,339,665.51/8,454.03
  6. Step 6: Final answer
    x = 6,782.52

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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.