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Finding the Fourth Proportional to 74,498.73, 102,808.26 and 40,964.73

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Solution

The fourth proportional to 74,498.73, 102,808.26 and 40,964.73 is: 56,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,498.73 : 102,808.26 = 40,964.73 : x
  2. Step 2: Convert to fraction form
    74,498.73/102,808.26 = 40,964.73/x
  3. Step 3: Cross multiply
    74,498.73x = 102,808.26 × 40,964.73
  4. Step 4: Simplify right side
    74,498.73x = 4,211,512,612.67
  5. Step 5: Solve for x
    x = 4,211,512,612.67/74,498.73
  6. Step 6: Final answer
    x = 56,531.33

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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.