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Finding the Fourth Proportional to 4,472.70, 6,618.30 and 4,472.70

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Solution

The fourth proportional to 4,472.70, 6,618.30 and 4,472.70 is: 6,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,472.70 : 6,618.30 = 4,472.70 : x
  2. Step 2: Convert to fraction form
    4,472.70/6,618.30 = 4,472.70/x
  3. Step 3: Cross multiply
    4,472.70x = 6,618.30 × 4,472.70
  4. Step 4: Simplify right side
    4,472.70x = 29,601,670.41
  5. Step 5: Solve for x
    x = 29,601,670.41/4,472.70
  6. Step 6: Final answer
    x = 6,618.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.