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Finding the Fourth Proportional to 48,928.80, 67,512.48 and 46,437.42

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Solution

The fourth proportional to 48,928.80, 67,512.48 and 46,437.42 is: 64,074.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,928.80 : 67,512.48 = 46,437.42 : x
  2. Step 2: Convert to fraction form
    48,928.80/67,512.48 = 46,437.42/x
  3. Step 3: Cross multiply
    48,928.80x = 67,512.48 × 46,437.42
  4. Step 4: Simplify right side
    48,928.80x = 3,135,105,389.00
  5. Step 5: Solve for x
    x = 3,135,105,389.00/48,928.80
  6. Step 6: Final answer
    x = 64,074.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.