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Finding the Fourth Proportional to 59,885.40, 89,764.86 and 22,420.80

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Solution

The fourth proportional to 59,885.40, 89,764.86 and 22,420.80 is: 33,607.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,885.40 : 89,764.86 = 22,420.80 : x
  2. Step 2: Convert to fraction form
    59,885.40/89,764.86 = 22,420.80/x
  3. Step 3: Cross multiply
    59,885.40x = 89,764.86 × 22,420.80
  4. Step 4: Simplify right side
    59,885.40x = 2,012,599,973.09
  5. Step 5: Solve for x
    x = 2,012,599,973.09/59,885.40
  6. Step 6: Final answer
    x = 33,607.52

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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.