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Finding the Fourth Proportional to 31,505.58, 43,477.81 and 17,358.39

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Solution

The fourth proportional to 31,505.58, 43,477.81 and 17,358.39 is: 23,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505.58 : 43,477.81 = 17,358.39 : x
  2. Step 2: Convert to fraction form
    31,505.58/43,477.81 = 17,358.39/x
  3. Step 3: Cross multiply
    31,505.58x = 43,477.81 × 17,358.39
  4. Step 4: Simplify right side
    31,505.58x = 754,704,782.33
  5. Step 5: Solve for x
    x = 754,704,782.33/31,505.58
  6. Step 6: Final answer
    x = 23,954.64

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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.