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Finding the Fourth Proportional to 55,888.96, 83,843.79 and 18,451.64

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Solution

The fourth proportional to 55,888.96, 83,843.79 and 18,451.64 is: 27,680.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,888.96 : 83,843.79 = 18,451.64 : x
  2. Step 2: Convert to fraction form
    55,888.96/83,843.79 = 18,451.64/x
  3. Step 3: Cross multiply
    55,888.96x = 83,843.79 × 18,451.64
  4. Step 4: Simplify right side
    55,888.96x = 1,547,055,429.32
  5. Step 5: Solve for x
    x = 1,547,055,429.32/55,888.96
  6. Step 6: Final answer
    x = 27,680.88

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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.