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Finding the Fourth Proportional to 70,472.01, 97,250.67 and 38,640.84

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Solution

The fourth proportional to 70,472.01, 97,250.67 and 38,640.84 is: 53,323.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,472.01 : 97,250.67 = 38,640.84 : x
  2. Step 2: Convert to fraction form
    70,472.01/97,250.67 = 38,640.84/x
  3. Step 3: Cross multiply
    70,472.01x = 97,250.67 × 38,640.84
  4. Step 4: Simplify right side
    70,472.01x = 3,757,847,579.36
  5. Step 5: Solve for x
    x = 3,757,847,579.36/70,472.01
  6. Step 6: Final answer
    x = 53,323.97

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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.