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Finding the Fourth Proportional to 59,818.20, 89,724.06 and 18,265.20

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Solution

The fourth proportional to 59,818.20, 89,724.06 and 18,265.20 is: 27,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,818.20 : 89,724.06 = 18,265.20 : x
  2. Step 2: Convert to fraction form
    59,818.20/89,724.06 = 18,265.20/x
  3. Step 3: Cross multiply
    59,818.20x = 89,724.06 × 18,265.20
  4. Step 4: Simplify right side
    59,818.20x = 1,638,827,900.71
  5. Step 5: Solve for x
    x = 1,638,827,900.71/59,818.20
  6. Step 6: Final answer
    x = 27,396.81

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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.