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Finding the Fourth Proportional to 70,296.14, 105,485.42 and 25,953.80

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Solution

The fourth proportional to 70,296.14, 105,485.42 and 25,953.80 is: 38,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,296.14 : 105,485.42 = 25,953.80 : x
  2. Step 2: Convert to fraction form
    70,296.14/105,485.42 = 25,953.80/x
  3. Step 3: Cross multiply
    70,296.14x = 105,485.42 × 25,953.80
  4. Step 4: Simplify right side
    70,296.14x = 2,737,747,627.54
  5. Step 5: Solve for x
    x = 2,737,747,627.54/70,296.14
  6. Step 6: Final answer
    x = 38,945.92

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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.