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Finding the Fourth Proportional to 7,216.07, 9,963.81 and 5,534.81

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Solution

The fourth proportional to 7,216.07, 9,963.81 and 5,534.81 is: 7,642.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.07 : 9,963.81 = 5,534.81 : x
  2. Step 2: Convert to fraction form
    7,216.07/9,963.81 = 5,534.81/x
  3. Step 3: Cross multiply
    7,216.07x = 9,963.81 × 5,534.81
  4. Step 4: Simplify right side
    7,216.07x = 55,147,782.77
  5. Step 5: Solve for x
    x = 55,147,782.77/7,216.07
  6. Step 6: Final answer
    x = 7,642.36

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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.