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Finding the Fourth Proportional to 58,843.71, 81,204.75 and 31,986.18

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Solution

The fourth proportional to 58,843.71, 81,204.75 and 31,986.18 is: 44,141.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,843.71 : 81,204.75 = 31,986.18 : x
  2. Step 2: Convert to fraction form
    58,843.71/81,204.75 = 31,986.18/x
  3. Step 3: Cross multiply
    58,843.71x = 81,204.75 × 31,986.18
  4. Step 4: Simplify right side
    58,843.71x = 2,597,429,750.36
  5. Step 5: Solve for x
    x = 2,597,429,750.36/58,843.71
  6. Step 6: Final answer
    x = 44,141.16

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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.