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Finding the Fourth Proportional to 55,471.65, 76,544.91 and 32,811.45

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Solution

The fourth proportional to 55,471.65, 76,544.91 and 32,811.45 is: 45,276.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,471.65 : 76,544.91 = 32,811.45 : x
  2. Step 2: Convert to fraction form
    55,471.65/76,544.91 = 32,811.45/x
  3. Step 3: Cross multiply
    55,471.65x = 76,544.91 × 32,811.45
  4. Step 4: Simplify right side
    55,471.65x = 2,511,549,487.22
  5. Step 5: Solve for x
    x = 2,511,549,487.22/55,471.65
  6. Step 6: Final answer
    x = 45,276.27

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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.