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Finding the Fourth Proportional to 43,878.56, 65,793.51 and 20,492.24

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Solution

The fourth proportional to 43,878.56, 65,793.51 and 20,492.24 is: 30,726.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,878.56 : 65,793.51 = 20,492.24 : x
  2. Step 2: Convert to fraction form
    43,878.56/65,793.51 = 20,492.24/x
  3. Step 3: Cross multiply
    43,878.56x = 65,793.51 × 20,492.24
  4. Step 4: Simplify right side
    43,878.56x = 1,348,256,068.39
  5. Step 5: Solve for x
    x = 1,348,256,068.39/43,878.56
  6. Step 6: Final answer
    x = 30,726.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.