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Finding the Fourth Proportional to 30,368.88, 41,908.86 and 16,757.64

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Solution

The fourth proportional to 30,368.88, 41,908.86 and 16,757.64 is: 23,125.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,368.88 : 41,908.86 = 16,757.64 : x
  2. Step 2: Convert to fraction form
    30,368.88/41,908.86 = 16,757.64/x
  3. Step 3: Cross multiply
    30,368.88x = 41,908.86 × 16,757.64
  4. Step 4: Simplify right side
    30,368.88x = 702,293,588.69
  5. Step 5: Solve for x
    x = 702,293,588.69/30,368.88
  6. Step 6: Final answer
    x = 23,125.44

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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.