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Finding the Fourth Proportional to 6,703.20, 10,054.80 and 4,078.80

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Solution

The fourth proportional to 6,703.20, 10,054.80 and 4,078.80 is: 6,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,703.20 : 10,054.80 = 4,078.80 : x
  2. Step 2: Convert to fraction form
    6,703.20/10,054.80 = 4,078.80/x
  3. Step 3: Cross multiply
    6,703.20x = 10,054.80 × 4,078.80
  4. Step 4: Simplify right side
    6,703.20x = 41,011,518.24
  5. Step 5: Solve for x
    x = 41,011,518.24/6,703.20
  6. Step 6: Final answer
    x = 6,118.20

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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.