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Finding the Fourth Proportional to 6,970.03, 9,611.27 and 4,979.86

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Solution

The fourth proportional to 6,970.03, 9,611.27 and 4,979.86 is: 6,866.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.03 : 9,611.27 = 4,979.86 : x
  2. Step 2: Convert to fraction form
    6,970.03/9,611.27 = 4,979.86/x
  3. Step 3: Cross multiply
    6,970.03x = 9,611.27 × 4,979.86
  4. Step 4: Simplify right side
    6,970.03x = 47,862,754.12
  5. Step 5: Solve for x
    x = 47,862,754.12/6,970.03
  6. Step 6: Final answer
    x = 6,866.94

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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.