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Finding the Fourth Proportional to 58,442.70, 80,651.79 and 33,291.66

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Solution

The fourth proportional to 58,442.70, 80,651.79 and 33,291.66 is: 45,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,442.70 : 80,651.79 = 33,291.66 : x
  2. Step 2: Convert to fraction form
    58,442.70/80,651.79 = 33,291.66/x
  3. Step 3: Cross multiply
    58,442.70x = 80,651.79 × 33,291.66
  4. Step 4: Simplify right side
    58,442.70x = 2,685,031,971.07
  5. Step 5: Solve for x
    x = 2,685,031,971.07/58,442.70
  6. Step 6: Final answer
    x = 45,942.98

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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.