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Finding the Fourth Proportional to 58,786, 81,129.80 and 32,295.12

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Solution

The fourth proportional to 58,786, 81,129.80 and 32,295.12 is: 44,570.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,786 : 81,129.80 = 32,295.12 : x
  2. Step 2: Convert to fraction form
    58,786/81,129.80 = 32,295.12/x
  3. Step 3: Cross multiply
    58,786x = 81,129.80 × 32,295.12
  4. Step 4: Simplify right side
    58,786x = 2,620,096,626.58
  5. Step 5: Solve for x
    x = 2,620,096,626.58/58,786
  6. Step 6: Final answer
    x = 44,570.08

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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.