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Finding the Fourth Proportional to 32,390.82, 48,612.15 and 16,812.90

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Solution

The fourth proportional to 32,390.82, 48,612.15 and 16,812.90 is: 25,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,390.82 : 48,612.15 = 16,812.90 : x
  2. Step 2: Convert to fraction form
    32,390.82/48,612.15 = 16,812.90/x
  3. Step 3: Cross multiply
    32,390.82x = 48,612.15 × 16,812.90
  4. Step 4: Simplify right side
    32,390.82x = 817,311,132.67
  5. Step 5: Solve for x
    x = 817,311,132.67/32,390.82
  6. Step 6: Final answer
    x = 25,232.80

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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.