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Finding the Fourth Proportional to 55,065.08, 75,990.12 and 29,914.64

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Solution

The fourth proportional to 55,065.08, 75,990.12 and 29,914.64 is: 41,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,065.08 : 75,990.12 = 29,914.64 : x
  2. Step 2: Convert to fraction form
    55,065.08/75,990.12 = 29,914.64/x
  3. Step 3: Cross multiply
    55,065.08x = 75,990.12 × 29,914.64
  4. Step 4: Simplify right side
    55,065.08x = 2,273,217,083.36
  5. Step 5: Solve for x
    x = 2,273,217,083.36/55,065.08
  6. Step 6: Final answer
    x = 41,282.37

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1.5x scale

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.