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Finding the Fourth Proportional to 28,063.88, 42,095.42 and 8,073.84

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Solution

The fourth proportional to 28,063.88, 42,095.42 and 8,073.84 is: 12,110.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.88 : 42,095.42 = 8,073.84 : x
  2. Step 2: Convert to fraction form
    28,063.88/42,095.42 = 8,073.84/x
  3. Step 3: Cross multiply
    28,063.88x = 42,095.42 × 8,073.84
  4. Step 4: Simplify right side
    28,063.88x = 339,871,685.81
  5. Step 5: Solve for x
    x = 339,871,685.81/28,063.88
  6. Step 6: Final answer
    x = 12,110.64

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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.