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Finding the Fourth Proportional to 5,901.12, 8,138.88 and 5,503.68

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Solution

The fourth proportional to 5,901.12, 8,138.88 and 5,503.68 is: 7,590.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,901.12 : 8,138.88 = 5,503.68 : x
  2. Step 2: Convert to fraction form
    5,901.12/8,138.88 = 5,503.68/x
  3. Step 3: Cross multiply
    5,901.12x = 8,138.88 × 5,503.68
  4. Step 4: Simplify right side
    5,901.12x = 44,793,791.08
  5. Step 5: Solve for x
    x = 44,793,791.08/5,901.12
  6. Step 6: Final answer
    x = 7,590.73

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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.