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Finding the Fourth Proportional to 70,076.46, 105,052.19 and 25,692.87

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Solution

The fourth proportional to 70,076.46, 105,052.19 and 25,692.87 is: 38,516.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,076.46 : 105,052.19 = 25,692.87 : x
  2. Step 2: Convert to fraction form
    70,076.46/105,052.19 = 25,692.87/x
  3. Step 3: Cross multiply
    70,076.46x = 105,052.19 × 25,692.87
  4. Step 4: Simplify right side
    70,076.46x = 2,699,092,132.42
  5. Step 5: Solve for x
    x = 2,699,092,132.42/70,076.46
  6. Step 6: Final answer
    x = 38,516.39

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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.