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Finding the Fourth Proportional to 35.84, 53.77 and 13.01

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Solution

The fourth proportional to 35.84, 53.77 and 13.01 is: 19.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.84 : 53.77 = 13.01 : x
  2. Step 2: Convert to fraction form
    35.84/53.77 = 13.01/x
  3. Step 3: Cross multiply
    35.84x = 53.77 × 13.01
  4. Step 4: Simplify right side
    35.84x = 699.55
  5. Step 5: Solve for x
    x = 699.55/35.84
  6. Step 6: Final answer
    x = 19.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.