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Finding the Fourth Proportional to 70,889.38, 97,832.84 and 39,063.94

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Solution

The fourth proportional to 70,889.38, 97,832.84 and 39,063.94 is: 53,911.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,889.38 : 97,832.84 = 39,063.94 : x
  2. Step 2: Convert to fraction form
    70,889.38/97,832.84 = 39,063.94/x
  3. Step 3: Cross multiply
    70,889.38x = 97,832.84 × 39,063.94
  4. Step 4: Simplify right side
    70,889.38x = 3,821,736,191.79
  5. Step 5: Solve for x
    x = 3,821,736,191.79/70,889.38
  6. Step 6: Final answer
    x = 53,911.27

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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.