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Finding the Fourth Proportional to 70,600.10, 97,434.87 and 40,379.50

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Solution

The fourth proportional to 70,600.10, 97,434.87 and 40,379.50 is: 55,727.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,600.10 : 97,434.87 = 40,379.50 : x
  2. Step 2: Convert to fraction form
    70,600.10/97,434.87 = 40,379.50/x
  3. Step 3: Cross multiply
    70,600.10x = 97,434.87 × 40,379.50
  4. Step 4: Simplify right side
    70,600.10x = 3,934,370,845.99
  5. Step 5: Solve for x
    x = 3,934,370,845.99/70,600.10
  6. Step 6: Final answer
    x = 55,727.55

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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.