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Finding the Fourth Proportional to 70,846.10, 97,764.46 and 40,609.74

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Solution

The fourth proportional to 70,846.10, 97,764.46 and 40,609.74 is: 56,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,846.10 : 97,764.46 = 40,609.74 : x
  2. Step 2: Convert to fraction form
    70,846.10/97,764.46 = 40,609.74/x
  3. Step 3: Cross multiply
    70,846.10x = 97,764.46 × 40,609.74
  4. Step 4: Simplify right side
    70,846.10x = 3,970,189,200.32
  5. Step 5: Solve for x
    x = 3,970,189,200.32/70,846.10
  6. Step 6: Final answer
    x = 56,039.63

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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.