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Finding the Fourth Proportional to 51,995.36, 77,992.64 and 12,552.32

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Solution

The fourth proportional to 51,995.36, 77,992.64 and 12,552.32 is: 18,828.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,995.36 : 77,992.64 = 12,552.32 : x
  2. Step 2: Convert to fraction form
    51,995.36/77,992.64 = 12,552.32/x
  3. Step 3: Cross multiply
    51,995.36x = 77,992.64 × 12,552.32
  4. Step 4: Simplify right side
    51,995.36x = 978,988,574.92
  5. Step 5: Solve for x
    x = 978,988,574.92/51,995.36
  6. Step 6: Final answer
    x = 18,828.38

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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.