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Finding the Fourth Proportional to 23,695.96, 32,662.16 and 20,621.95

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Solution

The fourth proportional to 23,695.96, 32,662.16 and 20,621.95 is: 28,424.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,695.96 : 32,662.16 = 20,621.95 : x
  2. Step 2: Convert to fraction form
    23,695.96/32,662.16 = 20,621.95/x
  3. Step 3: Cross multiply
    23,695.96x = 32,662.16 × 20,621.95
  4. Step 4: Simplify right side
    23,695.96x = 673,557,430.41
  5. Step 5: Solve for x
    x = 673,557,430.41/23,695.96
  6. Step 6: Final answer
    x = 28,424.99

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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.