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Finding the Fourth Proportional to 70,435.39, 105,653.08 and 36,694.42

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Solution

The fourth proportional to 70,435.39, 105,653.08 and 36,694.42 is: 55,041.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,435.39 : 105,653.08 = 36,694.42 : x
  2. Step 2: Convert to fraction form
    70,435.39/105,653.08 = 36,694.42/x
  3. Step 3: Cross multiply
    70,435.39x = 105,653.08 × 36,694.42
  4. Step 4: Simplify right side
    70,435.39x = 3,876,878,491.81
  5. Step 5: Solve for x
    x = 3,876,878,491.81/70,435.39
  6. Step 6: Final answer
    x = 55,041.63

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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.