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Finding the Fourth Proportional to 5,641.12, 8,464.56 and 4,828.96

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Solution

The fourth proportional to 5,641.12, 8,464.56 and 4,828.96 is: 7,245.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641.12 : 8,464.56 = 4,828.96 : x
  2. Step 2: Convert to fraction form
    5,641.12/8,464.56 = 4,828.96/x
  3. Step 3: Cross multiply
    5,641.12x = 8,464.56 × 4,828.96
  4. Step 4: Simplify right side
    5,641.12x = 40,875,021.66
  5. Step 5: Solve for x
    x = 40,875,021.66/5,641.12
  6. Step 6: Final answer
    x = 7,245.91

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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.