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Finding the Fourth Proportional to 39,562.98, 54,596.94 and 21,657.98

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Solution

The fourth proportional to 39,562.98, 54,596.94 and 21,657.98 is: 29,888.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,562.98 : 54,596.94 = 21,657.98 : x
  2. Step 2: Convert to fraction form
    39,562.98/54,596.94 = 21,657.98/x
  3. Step 3: Cross multiply
    39,562.98x = 54,596.94 × 21,657.98
  4. Step 4: Simplify right side
    39,562.98x = 1,182,459,489.86
  5. Step 5: Solve for x
    x = 1,182,459,489.86/39,562.98
  6. Step 6: Final answer
    x = 29,888.03

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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.