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Finding the Fourth Proportional to 5,570.64, 8,348.55 and 4,647.99

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Solution

The fourth proportional to 5,570.64, 8,348.55 and 4,647.99 is: 6,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,570.64 : 8,348.55 = 4,647.99 : x
  2. Step 2: Convert to fraction form
    5,570.64/8,348.55 = 4,647.99/x
  3. Step 3: Cross multiply
    5,570.64x = 8,348.55 × 4,647.99
  4. Step 4: Simplify right side
    5,570.64x = 38,803,976.91
  5. Step 5: Solve for x
    x = 38,803,976.91/5,570.64
  6. Step 6: Final answer
    x = 6,965.80

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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.