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Finding the Fourth Proportional to 11,660.13, 16,090.98 and 6,354.93

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Solution

The fourth proportional to 11,660.13, 16,090.98 and 6,354.93 is: 8,769.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,660.13 : 16,090.98 = 6,354.93 : x
  2. Step 2: Convert to fraction form
    11,660.13/16,090.98 = 6,354.93/x
  3. Step 3: Cross multiply
    11,660.13x = 16,090.98 × 6,354.93
  4. Step 4: Simplify right side
    11,660.13x = 102,257,051.53
  5. Step 5: Solve for x
    x = 102,257,051.53/11,660.13
  6. Step 6: Final answer
    x = 8,769.80

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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.