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Finding the Fourth Proportional to 66,980.76, 92,434.49 and 36,768.84

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Solution

The fourth proportional to 66,980.76, 92,434.49 and 36,768.84 is: 50,741.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,980.76 : 92,434.49 = 36,768.84 : x
  2. Step 2: Convert to fraction form
    66,980.76/92,434.49 = 36,768.84/x
  3. Step 3: Cross multiply
    66,980.76x = 92,434.49 × 36,768.84
  4. Step 4: Simplify right side
    66,980.76x = 3,398,708,684.11
  5. Step 5: Solve for x
    x = 3,398,708,684.11/66,980.76
  6. Step 6: Final answer
    x = 50,741.57

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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.