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Finding the Fourth Proportional to 55,994.32, 77,250 and 38,994.04

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Solution

The fourth proportional to 55,994.32, 77,250 and 38,994.04 is: 53,796.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,994.32 : 77,250 = 38,994.04 : x
  2. Step 2: Convert to fraction form
    55,994.32/77,250 = 38,994.04/x
  3. Step 3: Cross multiply
    55,994.32x = 77,250 × 38,994.04
  4. Step 4: Simplify right side
    55,994.32x = 3,012,289,590
  5. Step 5: Solve for x
    x = 3,012,289,590/55,994.32
  6. Step 6: Final answer
    x = 53,796.34

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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.