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Finding the Fourth Proportional to 50,709.40, 76,064.10 and 13,269.40

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Solution

The fourth proportional to 50,709.40, 76,064.10 and 13,269.40 is: 19,904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,709.40 : 76,064.10 = 13,269.40 : x
  2. Step 2: Convert to fraction form
    50,709.40/76,064.10 = 13,269.40/x
  3. Step 3: Cross multiply
    50,709.40x = 76,064.10 × 13,269.40
  4. Step 4: Simplify right side
    50,709.40x = 1,009,324,968.54
  5. Step 5: Solve for x
    x = 1,009,324,968.54/50,709.40
  6. Step 6: Final answer
    x = 19,904.10

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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.