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Finding the Fourth Proportional to 70,574.48, 105,767.64 and 37,286.72

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Solution

The fourth proportional to 70,574.48, 105,767.64 and 37,286.72 is: 55,880.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,574.48 : 105,767.64 = 37,286.72 : x
  2. Step 2: Convert to fraction form
    70,574.48/105,767.64 = 37,286.72/x
  3. Step 3: Cross multiply
    70,574.48x = 105,767.64 × 37,286.72
  4. Step 4: Simplify right side
    70,574.48x = 3,943,728,377.74
  5. Step 5: Solve for x
    x = 3,943,728,377.74/70,574.48
  6. Step 6: Final answer
    x = 55,880.37

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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.