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Finding the Fourth Proportional to 36,103.60, 54,097.80 and 30,228.40

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Solution

The fourth proportional to 36,103.60, 54,097.80 and 30,228.40 is: 45,294.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,103.60 : 54,097.80 = 30,228.40 : x
  2. Step 2: Convert to fraction form
    36,103.60/54,097.80 = 30,228.40/x
  3. Step 3: Cross multiply
    36,103.60x = 54,097.80 × 30,228.40
  4. Step 4: Simplify right side
    36,103.60x = 1,635,289,937.52
  5. Step 5: Solve for x
    x = 1,635,289,937.52/36,103.60
  6. Step 6: Final answer
    x = 45,294.37

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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.