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Finding the Fourth Proportional to 5,987.80, 8,969.80 and 4,683.16

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Solution

The fourth proportional to 5,987.80, 8,969.80 and 4,683.16 is: 7,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.80 : 8,969.80 = 4,683.16 : x
  2. Step 2: Convert to fraction form
    5,987.80/8,969.80 = 4,683.16/x
  3. Step 3: Cross multiply
    5,987.80x = 8,969.80 × 4,683.16
  4. Step 4: Simplify right side
    5,987.80x = 42,007,008.57
  5. Step 5: Solve for x
    x = 42,007,008.57/5,987.80
  6. Step 6: Final answer
    x = 7,015.43

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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.