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Finding the Fourth Proportional to 11,583.03, 15,990.09 and 7,761.26

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Solution

The fourth proportional to 11,583.03, 15,990.09 and 7,761.26 is: 10,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,583.03 : 15,990.09 = 7,761.26 : x
  2. Step 2: Convert to fraction form
    11,583.03/15,990.09 = 7,761.26/x
  3. Step 3: Cross multiply
    11,583.03x = 15,990.09 × 7,761.26
  4. Step 4: Simplify right side
    11,583.03x = 124,103,165.96
  5. Step 5: Solve for x
    x = 124,103,165.96/11,583.03
  6. Step 6: Final answer
    x = 10,714.22

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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.