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Finding the Fourth Proportional to 32,608.72, 48,912.76 and 12,896.40

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Solution

The fourth proportional to 32,608.72, 48,912.76 and 12,896.40 is: 19,344.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,608.72 : 48,912.76 = 12,896.40 : x
  2. Step 2: Convert to fraction form
    32,608.72/48,912.76 = 12,896.40/x
  3. Step 3: Cross multiply
    32,608.72x = 48,912.76 × 12,896.40
  4. Step 4: Simplify right side
    32,608.72x = 630,798,518.06
  5. Step 5: Solve for x
    x = 630,798,518.06/32,608.72
  6. Step 6: Final answer
    x = 19,344.47

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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.