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Finding the Fourth Proportional to 71,738.40, 107,588.40 and 24,986.40

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Solution

The fourth proportional to 71,738.40, 107,588.40 and 24,986.40 is: 37,472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,738.40 : 107,588.40 = 24,986.40 : x
  2. Step 2: Convert to fraction form
    71,738.40/107,588.40 = 24,986.40/x
  3. Step 3: Cross multiply
    71,738.40x = 107,588.40 × 24,986.40
  4. Step 4: Simplify right side
    71,738.40x = 2,688,246,797.76
  5. Step 5: Solve for x
    x = 2,688,246,797.76/71,738.40
  6. Step 6: Final answer
    x = 37,472.91

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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.