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Finding the Fourth Proportional to 21,347.88, 32,018.04 and 5,763.48

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Solution

The fourth proportional to 21,347.88, 32,018.04 and 5,763.48 is: 8,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.88 : 32,018.04 = 5,763.48 : x
  2. Step 2: Convert to fraction form
    21,347.88/32,018.04 = 5,763.48/x
  3. Step 3: Cross multiply
    21,347.88x = 32,018.04 × 5,763.48
  4. Step 4: Simplify right side
    21,347.88x = 184,535,333.18
  5. Step 5: Solve for x
    x = 184,535,333.18/21,347.88
  6. Step 6: Final answer
    x = 8,644.20

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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.