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Finding the Fourth Proportional to 32,755.76, 45,203.64 and 18,415.88

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Solution

The fourth proportional to 32,755.76, 45,203.64 and 18,415.88 is: 25,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,755.76 : 45,203.64 = 18,415.88 : x
  2. Step 2: Convert to fraction form
    32,755.76/45,203.64 = 18,415.88/x
  3. Step 3: Cross multiply
    32,755.76x = 45,203.64 × 18,415.88
  4. Step 4: Simplify right side
    32,755.76x = 832,464,809.80
  5. Step 5: Solve for x
    x = 832,464,809.80/32,755.76
  6. Step 6: Final answer
    x = 25,414.30

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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.