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Finding the Fourth Proportional to 37,978.04, 56,967.20 and 11,682.60

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Solution

The fourth proportional to 37,978.04, 56,967.20 and 11,682.60 is: 17,523.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,978.04 : 56,967.20 = 11,682.60 : x
  2. Step 2: Convert to fraction form
    37,978.04/56,967.20 = 11,682.60/x
  3. Step 3: Cross multiply
    37,978.04x = 56,967.20 × 11,682.60
  4. Step 4: Simplify right side
    37,978.04x = 665,525,010.72
  5. Step 5: Solve for x
    x = 665,525,010.72/37,978.04
  6. Step 6: Final answer
    x = 17,523.94

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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.