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Finding the Fourth Proportional to 55,064.80, 75,990.96 and 32,399.68

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Solution

The fourth proportional to 55,064.80, 75,990.96 and 32,399.68 is: 44,712.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,064.80 : 75,990.96 = 32,399.68 : x
  2. Step 2: Convert to fraction form
    55,064.80/75,990.96 = 32,399.68/x
  3. Step 3: Cross multiply
    55,064.80x = 75,990.96 × 32,399.68
  4. Step 4: Simplify right side
    55,064.80x = 2,462,082,786.89
  5. Step 5: Solve for x
    x = 2,462,082,786.89/55,064.80
  6. Step 6: Final answer
    x = 44,712.46

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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.