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Finding the Fourth Proportional to 53,361.68, 73,638.41 and 29,488.77

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Solution

The fourth proportional to 53,361.68, 73,638.41 and 29,488.77 is: 40,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,361.68 : 73,638.41 = 29,488.77 : x
  2. Step 2: Convert to fraction form
    53,361.68/73,638.41 = 29,488.77/x
  3. Step 3: Cross multiply
    53,361.68x = 73,638.41 × 29,488.77
  4. Step 4: Simplify right side
    53,361.68x = 2,171,505,988.21
  5. Step 5: Solve for x
    x = 2,171,505,988.21/53,361.68
  6. Step 6: Final answer
    x = 40,694.11

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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.