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Finding the Fourth Proportional to 71,353.50, 98,467.83 and 39,524.45

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Solution

The fourth proportional to 71,353.50, 98,467.83 and 39,524.45 is: 54,543.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,353.50 : 98,467.83 = 39,524.45 : x
  2. Step 2: Convert to fraction form
    71,353.50/98,467.83 = 39,524.45/x
  3. Step 3: Cross multiply
    71,353.50x = 98,467.83 × 39,524.45
  4. Step 4: Simplify right side
    71,353.50x = 3,891,886,700.36
  5. Step 5: Solve for x
    x = 3,891,886,700.36/71,353.50
  6. Step 6: Final answer
    x = 54,543.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.