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Finding the Fourth Proportional to 66,968.58, 92,416.36 and 36,754.40

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Solution

The fourth proportional to 66,968.58, 92,416.36 and 36,754.40 is: 50,720.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,968.58 : 92,416.36 = 36,754.40 : x
  2. Step 2: Convert to fraction form
    66,968.58/92,416.36 = 36,754.40/x
  3. Step 3: Cross multiply
    66,968.58x = 92,416.36 × 36,754.40
  4. Step 4: Simplify right side
    66,968.58x = 3,396,707,216.13
  5. Step 5: Solve for x
    x = 3,396,707,216.13/66,968.58
  6. Step 6: Final answer
    x = 50,720.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.