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Finding the Fourth Proportional to 8,905.28, 13,361.01 and 3,360.22

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Solution

The fourth proportional to 8,905.28, 13,361.01 and 3,360.22 is: 5,041.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.28 : 13,361.01 = 3,360.22 : x
  2. Step 2: Convert to fraction form
    8,905.28/13,361.01 = 3,360.22/x
  3. Step 3: Cross multiply
    8,905.28x = 13,361.01 × 3,360.22
  4. Step 4: Simplify right side
    8,905.28x = 44,895,899.62
  5. Step 5: Solve for x
    x = 44,895,899.62/8,905.28
  6. Step 6: Final answer
    x = 5,041.50

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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.