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Finding the Fourth Proportional to 8,627.48, 11,902.54 and 4,849.78

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Solution

The fourth proportional to 8,627.48, 11,902.54 and 4,849.78 is: 6,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.48 : 11,902.54 = 4,849.78 : x
  2. Step 2: Convert to fraction form
    8,627.48/11,902.54 = 4,849.78/x
  3. Step 3: Cross multiply
    8,627.48x = 11,902.54 × 4,849.78
  4. Step 4: Simplify right side
    8,627.48x = 57,724,700.44
  5. Step 5: Solve for x
    x = 57,724,700.44/8,627.48
  6. Step 6: Final answer
    x = 6,690.80

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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.