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Finding the Fourth Proportional to 38,335.37, 52,902.80 and 21,339.25

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Solution

The fourth proportional to 38,335.37, 52,902.80 and 21,339.25 is: 29,448.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,335.37 : 52,902.80 = 21,339.25 : x
  2. Step 2: Convert to fraction form
    38,335.37/52,902.80 = 21,339.25/x
  3. Step 3: Cross multiply
    38,335.37x = 52,902.80 × 21,339.25
  4. Step 4: Simplify right side
    38,335.37x = 1,128,905,810.39
  5. Step 5: Solve for x
    x = 1,128,905,810.39/38,335.37
  6. Step 6: Final answer
    x = 29,448.15

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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.