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Finding the Fourth Proportional to 11,365.18, 17,051.87 and 5,821.13

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Solution

The fourth proportional to 11,365.18, 17,051.87 and 5,821.13 is: 8,733.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,365.18 : 17,051.87 = 5,821.13 : x
  2. Step 2: Convert to fraction form
    11,365.18/17,051.87 = 5,821.13/x
  3. Step 3: Cross multiply
    11,365.18x = 17,051.87 × 5,821.13
  4. Step 4: Simplify right side
    11,365.18x = 99,261,209.20
  5. Step 5: Solve for x
    x = 99,261,209.20/11,365.18
  6. Step 6: Final answer
    x = 8,733.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.