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Finding the Fourth Proportional to 32,690.88, 48,993.28 and 12,958.68

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Solution

The fourth proportional to 32,690.88, 48,993.28 and 12,958.68 is: 19,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,690.88 : 48,993.28 = 12,958.68 : x
  2. Step 2: Convert to fraction form
    32,690.88/48,993.28 = 12,958.68/x
  3. Step 3: Cross multiply
    32,690.88x = 48,993.28 × 12,958.68
  4. Step 4: Simplify right side
    32,690.88x = 634,888,237.67
  5. Step 5: Solve for x
    x = 634,888,237.67/32,690.88
  6. Step 6: Final answer
    x = 19,420.96

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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.