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Finding the Fourth Proportional to 8,937.96, 12,334.50 and 5,400.24

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Solution

The fourth proportional to 8,937.96, 12,334.50 and 5,400.24 is: 7,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.96 : 12,334.50 = 5,400.24 : x
  2. Step 2: Convert to fraction form
    8,937.96/12,334.50 = 5,400.24/x
  3. Step 3: Cross multiply
    8,937.96x = 12,334.50 × 5,400.24
  4. Step 4: Simplify right side
    8,937.96x = 66,609,260.28
  5. Step 5: Solve for x
    x = 66,609,260.28/8,937.96
  6. Step 6: Final answer
    x = 7,452.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.