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Finding the Fourth Proportional to 62,812.40, 94,072.80 and 42,983.60

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Solution

The fourth proportional to 62,812.40, 94,072.80 and 42,983.60 is: 64,375.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,812.40 : 94,072.80 = 42,983.60 : x
  2. Step 2: Convert to fraction form
    62,812.40/94,072.80 = 42,983.60/x
  3. Step 3: Cross multiply
    62,812.40x = 94,072.80 × 42,983.60
  4. Step 4: Simplify right side
    62,812.40x = 4,043,587,606.08
  5. Step 5: Solve for x
    x = 4,043,587,606.08/62,812.40
  6. Step 6: Final answer
    x = 64,375.63

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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.