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Finding the Fourth Proportional to 4,980.53, 7,470.43 and 1,859.33

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Solution

The fourth proportional to 4,980.53, 7,470.43 and 1,859.33 is: 2,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.53 : 7,470.43 = 1,859.33 : x
  2. Step 2: Convert to fraction form
    4,980.53/7,470.43 = 1,859.33/x
  3. Step 3: Cross multiply
    4,980.53x = 7,470.43 × 1,859.33
  4. Step 4: Simplify right side
    4,980.53x = 13,889,994.61
  5. Step 5: Solve for x
    x = 13,889,994.61/4,980.53
  6. Step 6: Final answer
    x = 2,788.86

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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.