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Finding the Fourth Proportional to 58,238.71, 80,262.84 and 42,295.48

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Solution

The fourth proportional to 58,238.71, 80,262.84 and 42,295.48 is: 58,290.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,238.71 : 80,262.84 = 42,295.48 : x
  2. Step 2: Convert to fraction form
    58,238.71/80,262.84 = 42,295.48/x
  3. Step 3: Cross multiply
    58,238.71x = 80,262.84 × 42,295.48
  4. Step 4: Simplify right side
    58,238.71x = 3,394,755,343.96
  5. Step 5: Solve for x
    x = 3,394,755,343.96/58,238.71
  6. Step 6: Final answer
    x = 58,290.36

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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.