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Finding the Fourth Proportional to 5,644.98, 7,790.16 and 3,254.91

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Solution

The fourth proportional to 5,644.98, 7,790.16 and 3,254.91 is: 4,491.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.98 : 7,790.16 = 3,254.91 : x
  2. Step 2: Convert to fraction form
    5,644.98/7,790.16 = 3,254.91/x
  3. Step 3: Cross multiply
    5,644.98x = 7,790.16 × 3,254.91
  4. Step 4: Simplify right side
    5,644.98x = 25,356,261.55
  5. Step 5: Solve for x
    x = 25,356,261.55/5,644.98
  6. Step 6: Final answer
    x = 4,491.82

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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.