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Finding the Fourth Proportional to 55,312.70, 82,920.45 and 33,134.90

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Solution

The fourth proportional to 55,312.70, 82,920.45 and 33,134.90 is: 49,673.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,312.70 : 82,920.45 = 33,134.90 : x
  2. Step 2: Convert to fraction form
    55,312.70/82,920.45 = 33,134.90/x
  3. Step 3: Cross multiply
    55,312.70x = 82,920.45 × 33,134.90
  4. Step 4: Simplify right side
    55,312.70x = 2,747,560,818.71
  5. Step 5: Solve for x
    x = 2,747,560,818.71/55,312.70
  6. Step 6: Final answer
    x = 49,673.24

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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.