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Finding the Fourth Proportional to 35,880.47, 49,515.05 and 19,965.94

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Solution

The fourth proportional to 35,880.47, 49,515.05 and 19,965.94 is: 27,553.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,880.47 : 49,515.05 = 19,965.94 : x
  2. Step 2: Convert to fraction form
    35,880.47/49,515.05 = 19,965.94/x
  3. Step 3: Cross multiply
    35,880.47x = 49,515.05 × 19,965.94
  4. Step 4: Simplify right side
    35,880.47x = 988,614,609.74
  5. Step 5: Solve for x
    x = 988,614,609.74/35,880.47
  6. Step 6: Final answer
    x = 27,553.00

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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.