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Finding the Fourth Proportional to 9,325.41, 12,865.82 and 5,291.76

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Solution

The fourth proportional to 9,325.41, 12,865.82 and 5,291.76 is: 7,300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,325.41 : 12,865.82 = 5,291.76 : x
  2. Step 2: Convert to fraction form
    9,325.41/12,865.82 = 5,291.76/x
  3. Step 3: Cross multiply
    9,325.41x = 12,865.82 × 5,291.76
  4. Step 4: Simplify right side
    9,325.41x = 68,082,805.18
  5. Step 5: Solve for x
    x = 68,082,805.18/9,325.41
  6. Step 6: Final answer
    x = 7,300.78

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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.