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Finding the Fourth Proportional to 18,963.37, 28,445.08 and 6,483.52

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Solution

The fourth proportional to 18,963.37, 28,445.08 and 6,483.52 is: 9,725.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.37 : 28,445.08 = 6,483.52 : x
  2. Step 2: Convert to fraction form
    18,963.37/28,445.08 = 6,483.52/x
  3. Step 3: Cross multiply
    18,963.37x = 28,445.08 × 6,483.52
  4. Step 4: Simplify right side
    18,963.37x = 184,424,245.08
  5. Step 5: Solve for x
    x = 184,424,245.08/18,963.37
  6. Step 6: Final answer
    x = 9,725.29

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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.