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Finding the Fourth Proportional to 7,227.09, 9,971.10 and 4,395.60

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Solution

The fourth proportional to 7,227.09, 9,971.10 and 4,395.60 is: 6,064.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,227.09 : 9,971.10 = 4,395.60 : x
  2. Step 2: Convert to fraction form
    7,227.09/9,971.10 = 4,395.60/x
  3. Step 3: Cross multiply
    7,227.09x = 9,971.10 × 4,395.60
  4. Step 4: Simplify right side
    7,227.09x = 43,828,967.16
  5. Step 5: Solve for x
    x = 43,828,967.16/7,227.09
  6. Step 6: Final answer
    x = 6,064.54

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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.