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Finding the Fourth Proportional to 5,788.74, 7,988.42 and 3,270.89

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Solution

The fourth proportional to 5,788.74, 7,988.42 and 3,270.89 is: 4,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,788.74 : 7,988.42 = 3,270.89 : x
  2. Step 2: Convert to fraction form
    5,788.74/7,988.42 = 3,270.89/x
  3. Step 3: Cross multiply
    5,788.74x = 7,988.42 × 3,270.89
  4. Step 4: Simplify right side
    5,788.74x = 26,129,186.80
  5. Step 5: Solve for x
    x = 26,129,186.80/5,788.74
  6. Step 6: Final answer
    x = 4,513.80

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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.