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Finding the Fourth Proportional to 11,751.48, 17,627.90 and 4,256.68

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Solution

The fourth proportional to 11,751.48, 17,627.90 and 4,256.68 is: 6,385.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,751.48 : 17,627.90 = 4,256.68 : x
  2. Step 2: Convert to fraction form
    11,751.48/17,627.90 = 4,256.68/x
  3. Step 3: Cross multiply
    11,751.48x = 17,627.90 × 4,256.68
  4. Step 4: Simplify right side
    11,751.48x = 75,036,283.41
  5. Step 5: Solve for x
    x = 75,036,283.41/11,751.48
  6. Step 6: Final answer
    x = 6,385.26

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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.