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Finding the Fourth Proportional to 7,165.80, 10,735.20 and 4,393.98

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Solution

The fourth proportional to 7,165.80, 10,735.20 and 4,393.98 is: 6,582.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.80 : 10,735.20 = 4,393.98 : x
  2. Step 2: Convert to fraction form
    7,165.80/10,735.20 = 4,393.98/x
  3. Step 3: Cross multiply
    7,165.80x = 10,735.20 × 4,393.98
  4. Step 4: Simplify right side
    7,165.80x = 47,170,254.10
  5. Step 5: Solve for x
    x = 47,170,254.10/7,165.80
  6. Step 6: Final answer
    x = 6,582.69

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1.5x scale

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.