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Finding the Fourth Proportional to 53,276.56, 79,928.68 and 43,804.49

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Solution

The fourth proportional to 53,276.56, 79,928.68 and 43,804.49 is: 65,718.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,276.56 : 79,928.68 = 43,804.49 : x
  2. Step 2: Convert to fraction form
    53,276.56/79,928.68 = 43,804.49/x
  3. Step 3: Cross multiply
    53,276.56x = 79,928.68 × 43,804.49
  4. Step 4: Simplify right side
    53,276.56x = 3,501,235,063.77
  5. Step 5: Solve for x
    x = 3,501,235,063.77/53,276.56
  6. Step 6: Final answer
    x = 65,718.11

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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.