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Finding the Fourth Proportional to 9,325.57, 12,869.28 and 5,133.82

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Solution

The fourth proportional to 9,325.57, 12,869.28 and 5,133.82 is: 7,084.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,325.57 : 12,869.28 = 5,133.82 : x
  2. Step 2: Convert to fraction form
    9,325.57/12,869.28 = 5,133.82/x
  3. Step 3: Cross multiply
    9,325.57x = 12,869.28 × 5,133.82
  4. Step 4: Simplify right side
    9,325.57x = 66,068,567.05
  5. Step 5: Solve for x
    x = 66,068,567.05/9,325.57
  6. Step 6: Final answer
    x = 7,084.67

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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.