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Finding the Fourth Proportional to 38,312.70, 57,359.70 and 37,219.20

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Solution

The fourth proportional to 38,312.70, 57,359.70 and 37,219.20 is: 55,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,312.70 : 57,359.70 = 37,219.20 : x
  2. Step 2: Convert to fraction form
    38,312.70/57,359.70 = 37,219.20/x
  3. Step 3: Cross multiply
    38,312.70x = 57,359.70 × 37,219.20
  4. Step 4: Simplify right side
    38,312.70x = 2,134,882,146.24
  5. Step 5: Solve for x
    x = 2,134,882,146.24/38,312.70
  6. Step 6: Final answer
    x = 55,722.57

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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.