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Finding the Fourth Proportional to 5,570.98, 8,356.47 and 2,647.69

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Solution

The fourth proportional to 5,570.98, 8,356.47 and 2,647.69 is: 3,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,570.98 : 8,356.47 = 2,647.69 : x
  2. Step 2: Convert to fraction form
    5,570.98/8,356.47 = 2,647.69/x
  3. Step 3: Cross multiply
    5,570.98x = 8,356.47 × 2,647.69
  4. Step 4: Simplify right side
    5,570.98x = 22,125,342.05
  5. Step 5: Solve for x
    x = 22,125,342.05/5,570.98
  6. Step 6: Final answer
    x = 3,971.54

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Double scale
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Similar ratio
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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.