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Finding the Fourth Proportional to 8,461.96, 11,677.99 and 4,685.89

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Solution

The fourth proportional to 8,461.96, 11,677.99 and 4,685.89 is: 6,466.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461.96 : 11,677.99 = 4,685.89 : x
  2. Step 2: Convert to fraction form
    8,461.96/11,677.99 = 4,685.89/x
  3. Step 3: Cross multiply
    8,461.96x = 11,677.99 × 4,685.89
  4. Step 4: Simplify right side
    8,461.96x = 54,721,776.56
  5. Step 5: Solve for x
    x = 54,721,776.56/8,461.96
  6. Step 6: Final answer
    x = 6,466.80

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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.