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Finding the Fourth Proportional to 15,963.56, 23,945.40 and 4,276.40

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Solution

The fourth proportional to 15,963.56, 23,945.40 and 4,276.40 is: 6,414.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.56 : 23,945.40 = 4,276.40 : x
  2. Step 2: Convert to fraction form
    15,963.56/23,945.40 = 4,276.40/x
  3. Step 3: Cross multiply
    15,963.56x = 23,945.40 × 4,276.40
  4. Step 4: Simplify right side
    15,963.56x = 102,400,108.56
  5. Step 5: Solve for x
    x = 102,400,108.56/15,963.56
  6. Step 6: Final answer
    x = 6,414.62

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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.