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Finding the Fourth Proportional to 42,896.69, 59,145.95 and 36,918.08

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Solution

The fourth proportional to 42,896.69, 59,145.95 and 36,918.08 is: 50,902.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,896.69 : 59,145.95 = 36,918.08 : x
  2. Step 2: Convert to fraction form
    42,896.69/59,145.95 = 36,918.08/x
  3. Step 3: Cross multiply
    42,896.69x = 59,145.95 × 36,918.08
  4. Step 4: Simplify right side
    42,896.69x = 2,183,554,710.34
  5. Step 5: Solve for x
    x = 2,183,554,710.34/42,896.69
  6. Step 6: Final answer
    x = 50,902.64

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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.