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Finding the Fourth Proportional to 5,791.81, 7,988.62 and 3,554.77

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Solution

The fourth proportional to 5,791.81, 7,988.62 and 3,554.77 is: 4,903.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.81 : 7,988.62 = 3,554.77 : x
  2. Step 2: Convert to fraction form
    5,791.81/7,988.62 = 3,554.77/x
  3. Step 3: Cross multiply
    5,791.81x = 7,988.62 × 3,554.77
  4. Step 4: Simplify right side
    5,791.81x = 28,397,706.72
  5. Step 5: Solve for x
    x = 28,397,706.72/5,791.81
  6. Step 6: Final answer
    x = 4,903.08

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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.