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Finding the Fourth Proportional to 58,986.81, 81,403.04 and 32,129.25

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Solution

The fourth proportional to 58,986.81, 81,403.04 and 32,129.25 is: 44,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,986.81 : 81,403.04 = 32,129.25 : x
  2. Step 2: Convert to fraction form
    58,986.81/81,403.04 = 32,129.25/x
  3. Step 3: Cross multiply
    58,986.81x = 81,403.04 × 32,129.25
  4. Step 4: Simplify right side
    58,986.81x = 2,615,418,866.41
  5. Step 5: Solve for x
    x = 2,615,418,866.41/58,986.81
  6. Step 6: Final answer
    x = 44,339.05

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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.