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Finding the Fourth Proportional to 55,924.56, 83,886.82 and 20,388.56

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Solution

The fourth proportional to 55,924.56, 83,886.82 and 20,388.56 is: 30,582.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,924.56 : 83,886.82 = 20,388.56 : x
  2. Step 2: Convert to fraction form
    55,924.56/83,886.82 = 20,388.56/x
  3. Step 3: Cross multiply
    55,924.56x = 83,886.82 × 20,388.56
  4. Step 4: Simplify right side
    55,924.56x = 1,710,330,992.37
  5. Step 5: Solve for x
    x = 1,710,330,992.37/55,924.56
  6. Step 6: Final answer
    x = 30,582.82

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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.