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Finding the Fourth Proportional to 6,518.80, 9,785.40 and 6,095.80

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Solution

The fourth proportional to 6,518.80, 9,785.40 and 6,095.80 is: 9,150.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.80 : 9,785.40 = 6,095.80 : x
  2. Step 2: Convert to fraction form
    6,518.80/9,785.40 = 6,095.80/x
  3. Step 3: Cross multiply
    6,518.80x = 9,785.40 × 6,095.80
  4. Step 4: Simplify right side
    6,518.80x = 59,649,841.32
  5. Step 5: Solve for x
    x = 59,649,841.32/6,518.80
  6. Step 6: Final answer
    x = 9,150.43

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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.