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Finding the Fourth Proportional to 55,276.70, 82,915.05 and 25,752.20

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Solution

The fourth proportional to 55,276.70, 82,915.05 and 25,752.20 is: 38,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,276.70 : 82,915.05 = 25,752.20 : x
  2. Step 2: Convert to fraction form
    55,276.70/82,915.05 = 25,752.20/x
  3. Step 3: Cross multiply
    55,276.70x = 82,915.05 × 25,752.20
  4. Step 4: Simplify right side
    55,276.70x = 2,135,244,950.61
  5. Step 5: Solve for x
    x = 2,135,244,950.61/55,276.70
  6. Step 6: Final answer
    x = 38,628.30

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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.