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Finding the Fourth Proportional to 35,385.84, 48,806.94 and 20,273

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Solution

The fourth proportional to 35,385.84, 48,806.94 and 20,273 is: 27,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,385.84 : 48,806.94 = 20,273 : x
  2. Step 2: Convert to fraction form
    35,385.84/48,806.94 = 20,273/x
  3. Step 3: Cross multiply
    35,385.84x = 48,806.94 × 20,273
  4. Step 4: Simplify right side
    35,385.84x = 989,463,094.62
  5. Step 5: Solve for x
    x = 989,463,094.62/35,385.84
  6. Step 6: Final answer
    x = 27,962.12

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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.