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Finding the Fourth Proportional to 70,525.93, 97,325.78 and 40,311.90

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Solution

The fourth proportional to 70,525.93, 97,325.78 and 40,311.90 is: 55,630.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,525.93 : 97,325.78 = 40,311.90 : x
  2. Step 2: Convert to fraction form
    70,525.93/97,325.78 = 40,311.90/x
  3. Step 3: Cross multiply
    70,525.93x = 97,325.78 × 40,311.90
  4. Step 4: Simplify right side
    70,525.93x = 3,923,387,110.78
  5. Step 5: Solve for x
    x = 3,923,387,110.78/70,525.93
  6. Step 6: Final answer
    x = 55,630.42

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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.