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Finding the Fourth Proportional to 54,668.60, 82,002.90 and 15,231.80

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Solution

The fourth proportional to 54,668.60, 82,002.90 and 15,231.80 is: 22,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,668.60 : 82,002.90 = 15,231.80 : x
  2. Step 2: Convert to fraction form
    54,668.60/82,002.90 = 15,231.80/x
  3. Step 3: Cross multiply
    54,668.60x = 82,002.90 × 15,231.80
  4. Step 4: Simplify right side
    54,668.60x = 1,249,051,772.22
  5. Step 5: Solve for x
    x = 1,249,051,772.22/54,668.60
  6. Step 6: Final answer
    x = 22,847.70

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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.