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Finding the Fourth Proportional to 66,932.91, 92,291.70 and 42,701.48

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Solution

The fourth proportional to 66,932.91, 92,291.70 and 42,701.48 is: 58,879.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,932.91 : 92,291.70 = 42,701.48 : x
  2. Step 2: Convert to fraction form
    66,932.91/92,291.70 = 42,701.48/x
  3. Step 3: Cross multiply
    66,932.91x = 92,291.70 × 42,701.48
  4. Step 4: Simplify right side
    66,932.91x = 3,940,992,226.48
  5. Step 5: Solve for x
    x = 3,940,992,226.48/66,932.91
  6. Step 6: Final answer
    x = 58,879.74

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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.