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Finding the Fourth Proportional to 62,790.96, 94,094.28 and 31,583.28

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Solution

The fourth proportional to 62,790.96, 94,094.28 and 31,583.28 is: 47,328.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,790.96 : 94,094.28 = 31,583.28 : x
  2. Step 2: Convert to fraction form
    62,790.96/94,094.28 = 31,583.28/x
  3. Step 3: Cross multiply
    62,790.96x = 94,094.28 × 31,583.28
  4. Step 4: Simplify right side
    62,790.96x = 2,971,805,991.64
  5. Step 5: Solve for x
    x = 2,971,805,991.64/62,790.96
  6. Step 6: Final answer
    x = 47,328.56

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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.