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Finding the Fourth Proportional to 66,785.01, 92,162.10 and 36,569.78

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Solution

The fourth proportional to 66,785.01, 92,162.10 and 36,569.78 is: 50,465.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,785.01 : 92,162.10 = 36,569.78 : x
  2. Step 2: Convert to fraction form
    66,785.01/92,162.10 = 36,569.78/x
  3. Step 3: Cross multiply
    66,785.01x = 92,162.10 × 36,569.78
  4. Step 4: Simplify right side
    66,785.01x = 3,370,347,743.27
  5. Step 5: Solve for x
    x = 3,370,347,743.27/66,785.01
  6. Step 6: Final answer
    x = 50,465.63

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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.