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Finding the Fourth Proportional to 52,040.92, 78,039.48 and 37,912.90

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Solution

The fourth proportional to 52,040.92, 78,039.48 and 37,912.90 is: 56,853.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,040.92 : 78,039.48 = 37,912.90 : x
  2. Step 2: Convert to fraction form
    52,040.92/78,039.48 = 37,912.90/x
  3. Step 3: Cross multiply
    52,040.92x = 78,039.48 × 37,912.90
  4. Step 4: Simplify right side
    52,040.92x = 2,958,703,001.29
  5. Step 5: Solve for x
    x = 2,958,703,001.29/52,040.92
  6. Step 6: Final answer
    x = 56,853.40

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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.