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Finding the Fourth Proportional to 48,958.40, 73,437.60 and 46,431.20

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Solution

The fourth proportional to 48,958.40, 73,437.60 and 46,431.20 is: 69,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,958.40 : 73,437.60 = 46,431.20 : x
  2. Step 2: Convert to fraction form
    48,958.40/73,437.60 = 46,431.20/x
  3. Step 3: Cross multiply
    48,958.40x = 73,437.60 × 46,431.20
  4. Step 4: Simplify right side
    48,958.40x = 3,409,795,893.12
  5. Step 5: Solve for x
    x = 3,409,795,893.12/48,958.40
  6. Step 6: Final answer
    x = 69,646.80

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1.5x scale

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.