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Finding the Fourth Proportional to 59,381.40, 89,080.20 and 21,932.40

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Solution

The fourth proportional to 59,381.40, 89,080.20 and 21,932.40 is: 32,901.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,381.40 : 89,080.20 = 21,932.40 : x
  2. Step 2: Convert to fraction form
    59,381.40/89,080.20 = 21,932.40/x
  3. Step 3: Cross multiply
    59,381.40x = 89,080.20 × 21,932.40
  4. Step 4: Simplify right side
    59,381.40x = 1,953,742,578.48
  5. Step 5: Solve for x
    x = 1,953,742,578.48/59,381.40
  6. Step 6: Final answer
    x = 32,901.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.