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Finding the Fourth Proportional to 55,993.20, 83,994.16 and 18,551.76

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Solution

The fourth proportional to 55,993.20, 83,994.16 and 18,551.76 is: 27,829.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,993.20 : 83,994.16 = 18,551.76 : x
  2. Step 2: Convert to fraction form
    55,993.20/83,994.16 = 18,551.76/x
  3. Step 3: Cross multiply
    55,993.20x = 83,994.16 × 18,551.76
  4. Step 4: Simplify right side
    55,993.20x = 1,558,239,497.72
  5. Step 5: Solve for x
    x = 1,558,239,497.72/55,993.20
  6. Step 6: Final answer
    x = 27,829.08

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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.