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Finding the Fourth Proportional to 37,992.60, 56,988.84 and 10,290.60

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Solution

The fourth proportional to 37,992.60, 56,988.84 and 10,290.60 is: 15,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,992.60 : 56,988.84 = 10,290.60 : x
  2. Step 2: Convert to fraction form
    37,992.60/56,988.84 = 10,290.60/x
  3. Step 3: Cross multiply
    37,992.60x = 56,988.84 × 10,290.60
  4. Step 4: Simplify right side
    37,992.60x = 586,449,356.90
  5. Step 5: Solve for x
    x = 586,449,356.90/37,992.60
  6. Step 6: Final answer
    x = 15,435.88

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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.