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Finding the Fourth Proportional to 59,788.80, 89,681.76 and 18,236.16

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Solution

The fourth proportional to 59,788.80, 89,681.76 and 18,236.16 is: 27,353.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,788.80 : 89,681.76 = 18,236.16 : x
  2. Step 2: Convert to fraction form
    59,788.80/89,681.76 = 18,236.16/x
  3. Step 3: Cross multiply
    59,788.80x = 89,681.76 × 18,236.16
  4. Step 4: Simplify right side
    59,788.80x = 1,635,450,924.44
  5. Step 5: Solve for x
    x = 1,635,450,924.44/59,788.80
  6. Step 6: Final answer
    x = 27,353.80

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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.