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Finding the Fourth Proportional to 35,458.48, 48,930 and 19,543

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Solution

The fourth proportional to 35,458.48, 48,930 and 19,543 is: 26,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,458.48 : 48,930 = 19,543 : x
  2. Step 2: Convert to fraction form
    35,458.48/48,930 = 19,543/x
  3. Step 3: Cross multiply
    35,458.48x = 48,930 × 19,543
  4. Step 4: Simplify right side
    35,458.48x = 956,238,990
  5. Step 5: Solve for x
    x = 956,238,990/35,458.48
  6. Step 6: Final answer
    x = 26,967.85

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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.