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Finding the Fourth Proportional to 34,998.51, 48,296.74 and 19,890.91

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Solution

The fourth proportional to 34,998.51, 48,296.74 and 19,890.91 is: 27,448.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,998.51 : 48,296.74 = 19,890.91 : x
  2. Step 2: Convert to fraction form
    34,998.51/48,296.74 = 19,890.91/x
  3. Step 3: Cross multiply
    34,998.51x = 48,296.74 × 19,890.91
  4. Step 4: Simplify right side
    34,998.51x = 960,666,108.63
  5. Step 5: Solve for x
    x = 960,666,108.63/34,998.51
  6. Step 6: Final answer
    x = 27,448.77

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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.