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Finding the Fourth Proportional to 32,686.53, 48,986.70 and 12,954.32

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Solution

The fourth proportional to 32,686.53, 48,986.70 and 12,954.32 is: 19,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,686.53 : 48,986.70 = 12,954.32 : x
  2. Step 2: Convert to fraction form
    32,686.53/48,986.70 = 12,954.32/x
  3. Step 3: Cross multiply
    32,686.53x = 48,986.70 × 12,954.32
  4. Step 4: Simplify right side
    32,686.53x = 634,589,387.54
  5. Step 5: Solve for x
    x = 634,589,387.54/32,686.53
  6. Step 6: Final answer
    x = 19,414.40

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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.