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Finding the Fourth Proportional to 8,674.84, 11,971.62 and 4,898.80

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Solution

The fourth proportional to 8,674.84, 11,971.62 and 4,898.80 is: 6,760.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.84 : 11,971.62 = 4,898.80 : x
  2. Step 2: Convert to fraction form
    8,674.84/11,971.62 = 4,898.80/x
  3. Step 3: Cross multiply
    8,674.84x = 11,971.62 × 4,898.80
  4. Step 4: Simplify right side
    8,674.84x = 58,646,572.06
  5. Step 5: Solve for x
    x = 58,646,572.06/8,674.84
  6. Step 6: Final answer
    x = 6,760.54

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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.