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Finding the Fourth Proportional to 8,893.45, 12,273.08 and 4,914.55

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Solution

The fourth proportional to 8,893.45, 12,273.08 and 4,914.55 is: 6,782.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.45 : 12,273.08 = 4,914.55 : x
  2. Step 2: Convert to fraction form
    8,893.45/12,273.08 = 4,914.55/x
  3. Step 3: Cross multiply
    8,893.45x = 12,273.08 × 4,914.55
  4. Step 4: Simplify right side
    8,893.45x = 60,316,665.31
  5. Step 5: Solve for x
    x = 60,316,665.31/8,893.45
  6. Step 6: Final answer
    x = 6,782.14

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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.