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Finding the Fourth Proportional to 48,342.80, 72,427.80 and 41,430.80

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Solution

The fourth proportional to 48,342.80, 72,427.80 and 41,430.80 is: 62,072.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,342.80 : 72,427.80 = 41,430.80 : x
  2. Step 2: Convert to fraction form
    48,342.80/72,427.80 = 41,430.80/x
  3. Step 3: Cross multiply
    48,342.80x = 72,427.80 × 41,430.80
  4. Step 4: Simplify right side
    48,342.80x = 3,000,741,696.24
  5. Step 5: Solve for x
    x = 3,000,741,696.24/48,342.80
  6. Step 6: Final answer
    x = 62,072.15

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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.