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Finding the Fourth Proportional to 6,124.80, 8,454.60 and 4,029.60

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Solution

The fourth proportional to 6,124.80, 8,454.60 and 4,029.60 is: 5,562.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,124.80 : 8,454.60 = 4,029.60 : x
  2. Step 2: Convert to fraction form
    6,124.80/8,454.60 = 4,029.60/x
  3. Step 3: Cross multiply
    6,124.80x = 8,454.60 × 4,029.60
  4. Step 4: Simplify right side
    6,124.80x = 34,068,656.16
  5. Step 5: Solve for x
    x = 34,068,656.16/6,124.80
  6. Step 6: Final answer
    x = 5,562.41

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1.5x scale

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.