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Finding the Fourth Proportional to 31,615.41, 43,629.18 and 17,468.16

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Solution

The fourth proportional to 31,615.41, 43,629.18 and 17,468.16 is: 24,106.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,615.41 : 43,629.18 = 17,468.16 : x
  2. Step 2: Convert to fraction form
    31,615.41/43,629.18 = 17,468.16/x
  3. Step 3: Cross multiply
    31,615.41x = 43,629.18 × 17,468.16
  4. Step 4: Simplify right side
    31,615.41x = 762,121,366.05
  5. Step 5: Solve for x
    x = 762,121,366.05/31,615.41
  6. Step 6: Final answer
    x = 24,106.01

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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.