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Finding the Fourth Proportional to 7,374.75, 10,175.00 and 4,389.09

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Solution

The fourth proportional to 7,374.75, 10,175.00 and 4,389.09 is: 6,055.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.75 : 10,175.00 = 4,389.09 : x
  2. Step 2: Convert to fraction form
    7,374.75/10,175.00 = 4,389.09/x
  3. Step 3: Cross multiply
    7,374.75x = 10,175.00 × 4,389.09
  4. Step 4: Simplify right side
    7,374.75x = 44,658,968.80
  5. Step 5: Solve for x
    x = 44,658,968.80/7,374.75
  6. Step 6: Final answer
    x = 6,055.66

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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.