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Finding the Fourth Proportional to 5,580.56, 8,373.96 and 4,855.28

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Solution

The fourth proportional to 5,580.56, 8,373.96 and 4,855.28 is: 7,285.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.56 : 8,373.96 = 4,855.28 : x
  2. Step 2: Convert to fraction form
    5,580.56/8,373.96 = 4,855.28/x
  3. Step 3: Cross multiply
    5,580.56x = 8,373.96 × 4,855.28
  4. Step 4: Simplify right side
    5,580.56x = 40,657,920.51
  5. Step 5: Solve for x
    x = 40,657,920.51/5,580.56
  6. Step 6: Final answer
    x = 7,285.63

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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.