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Finding the Fourth Proportional to 35,703.54, 53,638.53 and 30,721.38

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Solution

The fourth proportional to 35,703.54, 53,638.53 and 30,721.38 is: 46,153.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,703.54 : 53,638.53 = 30,721.38 : x
  2. Step 2: Convert to fraction form
    35,703.54/53,638.53 = 30,721.38/x
  3. Step 3: Cross multiply
    35,703.54x = 53,638.53 × 30,721.38
  4. Step 4: Simplify right side
    35,703.54x = 1,647,849,662.77
  5. Step 5: Solve for x
    x = 1,647,849,662.77/35,703.54
  6. Step 6: Final answer
    x = 46,153.68

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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.