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Finding the Fourth Proportional to 4,860.61, 6,708.62 and 4,020.44

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Solution

The fourth proportional to 4,860.61, 6,708.62 and 4,020.44 is: 5,549.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,860.61 : 6,708.62 = 4,020.44 : x
  2. Step 2: Convert to fraction form
    4,860.61/6,708.62 = 4,020.44/x
  3. Step 3: Cross multiply
    4,860.61x = 6,708.62 × 4,020.44
  4. Step 4: Simplify right side
    4,860.61x = 26,971,580.70
  5. Step 5: Solve for x
    x = 26,971,580.70/4,860.61
  6. Step 6: Final answer
    x = 5,549.01

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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.