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Finding the Fourth Proportional to 37,640.25, 56,464.20 and 9,938.25

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Solution

The fourth proportional to 37,640.25, 56,464.20 and 9,938.25 is: 14,908.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,640.25 : 56,464.20 = 9,938.25 : x
  2. Step 2: Convert to fraction form
    37,640.25/56,464.20 = 9,938.25/x
  3. Step 3: Cross multiply
    37,640.25x = 56,464.20 × 9,938.25
  4. Step 4: Simplify right side
    37,640.25x = 561,155,335.65
  5. Step 5: Solve for x
    x = 561,155,335.65/37,640.25
  6. Step 6: Final answer
    x = 14,908.38

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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.