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Finding the Fourth Proportional to 32,755.31, 45,203.93 and 18,419.64

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Solution

The fourth proportional to 32,755.31, 45,203.93 and 18,419.64 is: 25,420.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,755.31 : 45,203.93 = 18,419.64 : x
  2. Step 2: Convert to fraction form
    32,755.31/45,203.93 = 18,419.64/x
  3. Step 3: Cross multiply
    32,755.31x = 45,203.93 × 18,419.64
  4. Step 4: Simplify right side
    32,755.31x = 832,640,025.09
  5. Step 5: Solve for x
    x = 832,640,025.09/32,755.31
  6. Step 6: Final answer
    x = 25,420.01

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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.