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Finding the Fourth Proportional to 7,898.52, 11,845.20 and 2,632.40

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Solution

The fourth proportional to 7,898.52, 11,845.20 and 2,632.40 is: 3,947.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.52 : 11,845.20 = 2,632.40 : x
  2. Step 2: Convert to fraction form
    7,898.52/11,845.20 = 2,632.40/x
  3. Step 3: Cross multiply
    7,898.52x = 11,845.20 × 2,632.40
  4. Step 4: Simplify right side
    7,898.52x = 31,181,304.48
  5. Step 5: Solve for x
    x = 31,181,304.48/7,898.52
  6. Step 6: Final answer
    x = 3,947.74

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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.