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Finding the Fourth Proportional to 35,843.64, 53,787.08 and 12,486.48

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Solution

The fourth proportional to 35,843.64, 53,787.08 and 12,486.48 is: 18,737.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,843.64 : 53,787.08 = 12,486.48 : x
  2. Step 2: Convert to fraction form
    35,843.64/53,787.08 = 12,486.48/x
  3. Step 3: Cross multiply
    35,843.64x = 53,787.08 × 12,486.48
  4. Step 4: Simplify right side
    35,843.64x = 671,611,298.68
  5. Step 5: Solve for x
    x = 671,611,298.68/35,843.64
  6. Step 6: Final answer
    x = 18,737.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.