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Finding the Fourth Proportional to 70,435.86, 97,200.84 and 38,604.61

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Solution

The fourth proportional to 70,435.86, 97,200.84 and 38,604.61 is: 53,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,435.86 : 97,200.84 = 38,604.61 : x
  2. Step 2: Convert to fraction form
    70,435.86/97,200.84 = 38,604.61/x
  3. Step 3: Cross multiply
    70,435.86x = 97,200.84 × 38,604.61
  4. Step 4: Simplify right side
    70,435.86x = 3,752,400,519.87
  5. Step 5: Solve for x
    x = 3,752,400,519.87/70,435.86
  6. Step 6: Final answer
    x = 53,274.01

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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.