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Finding the Fourth Proportional to 29,361.52, 40,479.24 and 19,913.68

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Solution

The fourth proportional to 29,361.52, 40,479.24 and 19,913.68 is: 27,453.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,361.52 : 40,479.24 = 19,913.68 : x
  2. Step 2: Convert to fraction form
    29,361.52/40,479.24 = 19,913.68/x
  3. Step 3: Cross multiply
    29,361.52x = 40,479.24 × 19,913.68
  4. Step 4: Simplify right side
    29,361.52x = 806,090,632.00
  5. Step 5: Solve for x
    x = 806,090,632.00/29,361.52
  6. Step 6: Final answer
    x = 27,453.98

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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.