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Finding the Fourth Proportional to 7,689.69, 10,611.80 and 4,333.34

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Solution

The fourth proportional to 7,689.69, 10,611.80 and 4,333.34 is: 5,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.69 : 10,611.80 = 4,333.34 : x
  2. Step 2: Convert to fraction form
    7,689.69/10,611.80 = 4,333.34/x
  3. Step 3: Cross multiply
    7,689.69x = 10,611.80 × 4,333.34
  4. Step 4: Simplify right side
    7,689.69x = 45,984,462.69
  5. Step 5: Solve for x
    x = 45,984,462.69/7,689.69
  6. Step 6: Final answer
    x = 5,980.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.