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Finding the Fourth Proportional to 35,372, 48,813.36 and 20,468

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Solution

The fourth proportional to 35,372, 48,813.36 and 20,468 is: 28,245.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,372 : 48,813.36 = 20,468 : x
  2. Step 2: Convert to fraction form
    35,372/48,813.36 = 20,468/x
  3. Step 3: Cross multiply
    35,372x = 48,813.36 × 20,468
  4. Step 4: Simplify right side
    35,372x = 999,111,852.48
  5. Step 5: Solve for x
    x = 999,111,852.48/35,372
  6. Step 6: Final answer
    x = 28,245.84

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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.