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Finding the Fourth Proportional to 30,604.44, 42,235.74 and 17,175

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Solution

The fourth proportional to 30,604.44, 42,235.74 and 17,175 is: 23,702.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,604.44 : 42,235.74 = 17,175 : x
  2. Step 2: Convert to fraction form
    30,604.44/42,235.74 = 17,175/x
  3. Step 3: Cross multiply
    30,604.44x = 42,235.74 × 17,175
  4. Step 4: Simplify right side
    30,604.44x = 725,398,834.50
  5. Step 5: Solve for x
    x = 725,398,834.50/30,604.44
  6. Step 6: Final answer
    x = 23,702.41

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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.