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Finding the Fourth Proportional to 55,120.80, 82,486.80 and 37,624.80

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Solution

The fourth proportional to 55,120.80, 82,486.80 and 37,624.80 is: 56,304.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,120.80 : 82,486.80 = 37,624.80 : x
  2. Step 2: Convert to fraction form
    55,120.80/82,486.80 = 37,624.80/x
  3. Step 3: Cross multiply
    55,120.80x = 82,486.80 × 37,624.80
  4. Step 4: Simplify right side
    55,120.80x = 3,103,549,352.64
  5. Step 5: Solve for x
    x = 3,103,549,352.64/55,120.80
  6. Step 6: Final answer
    x = 56,304.50

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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.