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Finding the Fourth Proportional to 32,449.20, 48,664.20 and 12,716.40

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Solution

The fourth proportional to 32,449.20, 48,664.20 and 12,716.40 is: 19,070.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,449.20 : 48,664.20 = 12,716.40 : x
  2. Step 2: Convert to fraction form
    32,449.20/48,664.20 = 12,716.40/x
  3. Step 3: Cross multiply
    32,449.20x = 48,664.20 × 12,716.40
  4. Step 4: Simplify right side
    32,449.20x = 618,833,432.88
  5. Step 5: Solve for x
    x = 618,833,432.88/32,449.20
  6. Step 6: Final answer
    x = 19,070.84

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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.