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Finding the Fourth Proportional to 4,818.66, 7,211.54 and 4,039.53

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Solution

The fourth proportional to 4,818.66, 7,211.54 and 4,039.53 is: 6,045.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.66 : 7,211.54 = 4,039.53 : x
  2. Step 2: Convert to fraction form
    4,818.66/7,211.54 = 4,039.53/x
  3. Step 3: Cross multiply
    4,818.66x = 7,211.54 × 4,039.53
  4. Step 4: Simplify right side
    4,818.66x = 29,131,211.98
  5. Step 5: Solve for x
    x = 29,131,211.98/4,818.66
  6. Step 6: Final answer
    x = 6,045.50

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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.