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Finding the Fourth Proportional to 7,504.98, 10,361.06 and 4,990.53

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Solution

The fourth proportional to 7,504.98, 10,361.06 and 4,990.53 is: 6,889.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,504.98 : 10,361.06 = 4,990.53 : x
  2. Step 2: Convert to fraction form
    7,504.98/10,361.06 = 4,990.53/x
  3. Step 3: Cross multiply
    7,504.98x = 10,361.06 × 4,990.53
  4. Step 4: Simplify right side
    7,504.98x = 51,707,180.76
  5. Step 5: Solve for x
    x = 51,707,180.76/7,504.98
  6. Step 6: Final answer
    x = 6,889.72

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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.