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Finding the Fourth Proportional to 32,644.78, 48,975.60 and 13,915.42

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Solution

The fourth proportional to 32,644.78, 48,975.60 and 13,915.42 is: 20,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,644.78 : 48,975.60 = 13,915.42 : x
  2. Step 2: Convert to fraction form
    32,644.78/48,975.60 = 13,915.42/x
  3. Step 3: Cross multiply
    32,644.78x = 48,975.60 × 13,915.42
  4. Step 4: Simplify right side
    32,644.78x = 681,516,043.75
  5. Step 5: Solve for x
    x = 681,516,043.75/32,644.78
  6. Step 6: Final answer
    x = 20,876.72

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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.