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Finding the Fourth Proportional to 5,644.53, 7,784.64 and 4,463.55

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Solution

The fourth proportional to 5,644.53, 7,784.64 and 4,463.55 is: 6,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.53 : 7,784.64 = 4,463.55 : x
  2. Step 2: Convert to fraction form
    5,644.53/7,784.64 = 4,463.55/x
  3. Step 3: Cross multiply
    5,644.53x = 7,784.64 × 4,463.55
  4. Step 4: Simplify right side
    5,644.53x = 34,747,129.87
  5. Step 5: Solve for x
    x = 34,747,129.87/5,644.53
  6. Step 6: Final answer
    x = 6,155.89

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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.