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Finding the Fourth Proportional to 30,469.16, 42,046.60 and 17,040.44

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Solution

The fourth proportional to 30,469.16, 42,046.60 and 17,040.44 is: 23,515.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,469.16 : 42,046.60 = 17,040.44 : x
  2. Step 2: Convert to fraction form
    30,469.16/42,046.60 = 17,040.44/x
  3. Step 3: Cross multiply
    30,469.16x = 42,046.60 × 17,040.44
  4. Step 4: Simplify right side
    30,469.16x = 716,492,564.50
  5. Step 5: Solve for x
    x = 716,492,564.50/30,469.16
  6. Step 6: Final answer
    x = 23,515.34

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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.