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Finding the Fourth Proportional to 30,645.25, 45,935.20 and 17,469.25

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Solution

The fourth proportional to 30,645.25, 45,935.20 and 17,469.25 is: 26,185.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,645.25 : 45,935.20 = 17,469.25 : x
  2. Step 2: Convert to fraction form
    30,645.25/45,935.20 = 17,469.25/x
  3. Step 3: Cross multiply
    30,645.25x = 45,935.20 × 17,469.25
  4. Step 4: Simplify right side
    30,645.25x = 802,453,492.60
  5. Step 5: Solve for x
    x = 802,453,492.60/30,645.25
  6. Step 6: Final answer
    x = 26,185.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.