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Finding the Fourth Proportional to 30,481.97, 42,063.42 and 17,050.63

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Solution

The fourth proportional to 30,481.97, 42,063.42 and 17,050.63 is: 23,528.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481.97 : 42,063.42 = 17,050.63 : x
  2. Step 2: Convert to fraction form
    30,481.97/42,063.42 = 17,050.63/x
  3. Step 3: Cross multiply
    30,481.97x = 42,063.42 × 17,050.63
  4. Step 4: Simplify right side
    30,481.97x = 717,207,810.95
  5. Step 5: Solve for x
    x = 717,207,810.95/30,481.97
  6. Step 6: Final answer
    x = 23,528.92

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Half scale
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Double scale
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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.