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Finding the Fourth Proportional to 21,361.19, 32,040.81 and 7,322.46

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Solution

The fourth proportional to 21,361.19, 32,040.81 and 7,322.46 is: 10,983.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361.19 : 32,040.81 = 7,322.46 : x
  2. Step 2: Convert to fraction form
    21,361.19/32,040.81 = 7,322.46/x
  3. Step 3: Cross multiply
    21,361.19x = 32,040.81 × 7,322.46
  4. Step 4: Simplify right side
    21,361.19x = 234,617,549.59
  5. Step 5: Solve for x
    x = 234,617,549.59/21,361.19
  6. Step 6: Final answer
    x = 10,983.36

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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.