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Finding the Fourth Proportional to 4,987.19, 7,482.06 and 1,867.43

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Solution

The fourth proportional to 4,987.19, 7,482.06 and 1,867.43 is: 2,801.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.19 : 7,482.06 = 1,867.43 : x
  2. Step 2: Convert to fraction form
    4,987.19/7,482.06 = 1,867.43/x
  3. Step 3: Cross multiply
    4,987.19x = 7,482.06 × 1,867.43
  4. Step 4: Simplify right side
    4,987.19x = 13,972,185.90
  5. Step 5: Solve for x
    x = 13,972,185.90/4,987.19
  6. Step 6: Final answer
    x = 2,801.62

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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.