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Finding the Fourth Proportional to 70,992.16, 106,397.78 and 37,728.16

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Solution

The fourth proportional to 70,992.16, 106,397.78 and 37,728.16 is: 56,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,992.16 : 106,397.78 = 37,728.16 : x
  2. Step 2: Convert to fraction form
    70,992.16/106,397.78 = 37,728.16/x
  3. Step 3: Cross multiply
    70,992.16x = 106,397.78 × 37,728.16
  4. Step 4: Simplify right side
    70,992.16x = 4,014,192,467.48
  5. Step 5: Solve for x
    x = 4,014,192,467.48/70,992.16
  6. Step 6: Final answer
    x = 56,544.17

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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.