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Finding the Fourth Proportional to 17,803.20, 26,704.80 and 4,656.90

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Solution

The fourth proportional to 17,803.20, 26,704.80 and 4,656.90 is: 6,985.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,803.20 : 26,704.80 = 4,656.90 : x
  2. Step 2: Convert to fraction form
    17,803.20/26,704.80 = 4,656.90/x
  3. Step 3: Cross multiply
    17,803.20x = 26,704.80 × 4,656.90
  4. Step 4: Simplify right side
    17,803.20x = 124,361,583.12
  5. Step 5: Solve for x
    x = 124,361,583.12/17,803.20
  6. Step 6: Final answer
    x = 6,985.35

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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.