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Finding the Fourth Proportional to 23,662.80, 32,659.20 and 17,312.40

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Solution

The fourth proportional to 23,662.80, 32,659.20 and 17,312.40 is: 23,894.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,662.80 : 32,659.20 = 17,312.40 : x
  2. Step 2: Convert to fraction form
    23,662.80/32,659.20 = 17,312.40/x
  3. Step 3: Cross multiply
    23,662.80x = 32,659.20 × 17,312.40
  4. Step 4: Simplify right side
    23,662.80x = 565,409,134.08
  5. Step 5: Solve for x
    x = 565,409,134.08/23,662.80
  6. Step 6: Final answer
    x = 23,894.43

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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.