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Finding the Fourth Proportional to 70,516.94, 97,311.62 and 39,471.75

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Solution

The fourth proportional to 70,516.94, 97,311.62 and 39,471.75 is: 54,470.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,516.94 : 97,311.62 = 39,471.75 : x
  2. Step 2: Convert to fraction form
    70,516.94/97,311.62 = 39,471.75/x
  3. Step 3: Cross multiply
    70,516.94x = 97,311.62 × 39,471.75
  4. Step 4: Simplify right side
    70,516.94x = 3,841,059,739.38
  5. Step 5: Solve for x
    x = 3,841,059,739.38/70,516.94
  6. Step 6: Final answer
    x = 54,470.03

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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.