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Finding the Fourth Proportional to 8,675.79, 11,971.49 and 4,898.49

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Solution

The fourth proportional to 8,675.79, 11,971.49 and 4,898.49 is: 6,759.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.79 : 11,971.49 = 4,898.49 : x
  2. Step 2: Convert to fraction form
    8,675.79/11,971.49 = 4,898.49/x
  3. Step 3: Cross multiply
    8,675.79x = 11,971.49 × 4,898.49
  4. Step 4: Simplify right side
    8,675.79x = 58,642,164.19
  5. Step 5: Solve for x
    x = 58,642,164.19/8,675.79
  6. Step 6: Final answer
    x = 6,759.29

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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.