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Finding the Fourth Proportional to 35,880.84, 49,515.84 and 21,723.84

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Solution

The fourth proportional to 35,880.84, 49,515.84 and 21,723.84 is: 29,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,880.84 : 49,515.84 = 21,723.84 : x
  2. Step 2: Convert to fraction form
    35,880.84/49,515.84 = 21,723.84/x
  3. Step 3: Cross multiply
    35,880.84x = 49,515.84 × 21,723.84
  4. Step 4: Simplify right side
    35,880.84x = 1,075,674,185.63
  5. Step 5: Solve for x
    x = 1,075,674,185.63/35,880.84
  6. Step 6: Final answer
    x = 29,979.07

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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.