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Finding the Fourth Proportional to 9,048.39, 12,474.05 and 7,449.45

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Solution

The fourth proportional to 9,048.39, 12,474.05 and 7,449.45 is: 10,269.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,048.39 : 12,474.05 = 7,449.45 : x
  2. Step 2: Convert to fraction form
    9,048.39/12,474.05 = 7,449.45/x
  3. Step 3: Cross multiply
    9,048.39x = 12,474.05 × 7,449.45
  4. Step 4: Simplify right side
    9,048.39x = 92,924,774.53
  5. Step 5: Solve for x
    x = 92,924,774.53/9,048.39
  6. Step 6: Final answer
    x = 10,269.76

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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.