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Finding the Fourth Proportional to 52,928.93, 79,289.60 and 30,695.60

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Solution

The fourth proportional to 52,928.93, 79,289.60 and 30,695.60 is: 45,983.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,928.93 : 79,289.60 = 30,695.60 : x
  2. Step 2: Convert to fraction form
    52,928.93/79,289.60 = 30,695.60/x
  3. Step 3: Cross multiply
    52,928.93x = 79,289.60 × 30,695.60
  4. Step 4: Simplify right side
    52,928.93x = 2,433,841,845.76
  5. Step 5: Solve for x
    x = 2,433,841,845.76/52,928.93
  6. Step 6: Final answer
    x = 45,983.21

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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.