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Finding the Fourth Proportional to 53,953.60, 80,930.40 and 32,958.40

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Solution

The fourth proportional to 53,953.60, 80,930.40 and 32,958.40 is: 49,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,953.60 : 80,930.40 = 32,958.40 : x
  2. Step 2: Convert to fraction form
    53,953.60/80,930.40 = 32,958.40/x
  3. Step 3: Cross multiply
    53,953.60x = 80,930.40 × 32,958.40
  4. Step 4: Simplify right side
    53,953.60x = 2,667,336,495.36
  5. Step 5: Solve for x
    x = 2,667,336,495.36/53,953.60
  6. Step 6: Final answer
    x = 49,437.60

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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.