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Finding the Fourth Proportional to 11,425.35, 17,138.08 and 5,582.42

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Solution

The fourth proportional to 11,425.35, 17,138.08 and 5,582.42 is: 8,373.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.35 : 17,138.08 = 5,582.42 : x
  2. Step 2: Convert to fraction form
    11,425.35/17,138.08 = 5,582.42/x
  3. Step 3: Cross multiply
    11,425.35x = 17,138.08 × 5,582.42
  4. Step 4: Simplify right side
    11,425.35x = 95,671,946.11
  5. Step 5: Solve for x
    x = 95,671,946.11/11,425.35
  6. Step 6: Final answer
    x = 8,373.65

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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.