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Finding the Fourth Proportional to 37,586.20, 56,306.40 and 20,916.40

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Solution

The fourth proportional to 37,586.20, 56,306.40 and 20,916.40 is: 31,334.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,586.20 : 56,306.40 = 20,916.40 : x
  2. Step 2: Convert to fraction form
    37,586.20/56,306.40 = 20,916.40/x
  3. Step 3: Cross multiply
    37,586.20x = 56,306.40 × 20,916.40
  4. Step 4: Simplify right side
    37,586.20x = 1,177,727,184.96
  5. Step 5: Solve for x
    x = 1,177,727,184.96/37,586.20
  6. Step 6: Final answer
    x = 31,334.03

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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.