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Finding the Fourth Proportional to 32,728.34, 45,164.84 and 18,580.88

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Solution

The fourth proportional to 32,728.34, 45,164.84 and 18,580.88 is: 25,641.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,728.34 : 45,164.84 = 18,580.88 : x
  2. Step 2: Convert to fraction form
    32,728.34/45,164.84 = 18,580.88/x
  3. Step 3: Cross multiply
    32,728.34x = 45,164.84 × 18,580.88
  4. Step 4: Simplify right side
    32,728.34x = 839,202,153.53
  5. Step 5: Solve for x
    x = 839,202,153.53/32,728.34
  6. Step 6: Final answer
    x = 25,641.46

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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.