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Finding the Fourth Proportional to 35,805.94, 49,412.23 and 19,891.87

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Solution

The fourth proportional to 35,805.94, 49,412.23 and 19,891.87 is: 27,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,805.94 : 49,412.23 = 19,891.87 : x
  2. Step 2: Convert to fraction form
    35,805.94/49,412.23 = 19,891.87/x
  3. Step 3: Cross multiply
    35,805.94x = 49,412.23 × 19,891.87
  4. Step 4: Simplify right side
    35,805.94x = 982,901,482.31
  5. Step 5: Solve for x
    x = 982,901,482.31/35,805.94
  6. Step 6: Final answer
    x = 27,450.80

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1.5x scale

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.