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Finding the Fourth Proportional to 38,026.66, 52,476.90 and 21,259.66

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Solution

The fourth proportional to 38,026.66, 52,476.90 and 21,259.66 is: 29,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,026.66 : 52,476.90 = 21,259.66 : x
  2. Step 2: Convert to fraction form
    38,026.66/52,476.90 = 21,259.66/x
  3. Step 3: Cross multiply
    38,026.66x = 52,476.90 × 21,259.66
  4. Step 4: Simplify right side
    38,026.66x = 1,115,641,051.85
  5. Step 5: Solve for x
    x = 1,115,641,051.85/38,026.66
  6. Step 6: Final answer
    x = 29,338.39

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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.