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Finding the Fourth Proportional to 32,589.51, 44,978.31 and 20,653.92

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Solution

The fourth proportional to 32,589.51, 44,978.31 and 20,653.92 is: 28,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,589.51 : 44,978.31 = 20,653.92 : x
  2. Step 2: Convert to fraction form
    32,589.51/44,978.31 = 20,653.92/x
  3. Step 3: Cross multiply
    32,589.51x = 44,978.31 × 20,653.92
  4. Step 4: Simplify right side
    32,589.51x = 928,978,416.48
  5. Step 5: Solve for x
    x = 928,978,416.48/32,589.51
  6. Step 6: Final answer
    x = 28,505.44

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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.