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Finding the Fourth Proportional to 37,242, 51,393.96 and 20,475

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Solution

The fourth proportional to 37,242, 51,393.96 and 20,475 is: 28,255.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,242 : 51,393.96 = 20,475 : x
  2. Step 2: Convert to fraction form
    37,242/51,393.96 = 20,475/x
  3. Step 3: Cross multiply
    37,242x = 51,393.96 × 20,475
  4. Step 4: Simplify right side
    37,242x = 1,052,291,331
  5. Step 5: Solve for x
    x = 1,052,291,331/37,242
  6. Step 6: Final answer
    x = 28,255.50

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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.