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Finding the Fourth Proportional to 59,978.84, 90,026.57 and 28,835.96

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Solution

The fourth proportional to 59,978.84, 90,026.57 and 28,835.96 is: 43,281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,978.84 : 90,026.57 = 28,835.96 : x
  2. Step 2: Convert to fraction form
    59,978.84/90,026.57 = 28,835.96/x
  3. Step 3: Cross multiply
    59,978.84x = 90,026.57 × 28,835.96
  4. Step 4: Simplify right side
    59,978.84x = 2,596,002,193.41
  5. Step 5: Solve for x
    x = 2,596,002,193.41/59,978.84
  6. Step 6: Final answer
    x = 43,281.97

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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.