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Finding the Fourth Proportional to 10,168.48, 15,252.72 and 4,321

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Solution

The fourth proportional to 10,168.48, 15,252.72 and 4,321 is: 6,481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,168.48 : 15,252.72 = 4,321 : x
  2. Step 2: Convert to fraction form
    10,168.48/15,252.72 = 4,321/x
  3. Step 3: Cross multiply
    10,168.48x = 15,252.72 × 4,321
  4. Step 4: Simplify right side
    10,168.48x = 65,907,003.12
  5. Step 5: Solve for x
    x = 65,907,003.12/10,168.48
  6. Step 6: Final answer
    x = 6,481.50

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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.