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Finding the Fourth Proportional to 9,325.84, 12,869.12 and 5,347.12

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Solution

The fourth proportional to 9,325.84, 12,869.12 and 5,347.12 is: 7,378.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,325.84 : 12,869.12 = 5,347.12 : x
  2. Step 2: Convert to fraction form
    9,325.84/12,869.12 = 5,347.12/x
  3. Step 3: Cross multiply
    9,325.84x = 12,869.12 × 5,347.12
  4. Step 4: Simplify right side
    9,325.84x = 68,812,728.93
  5. Step 5: Solve for x
    x = 68,812,728.93/9,325.84
  6. Step 6: Final answer
    x = 7,378.72

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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.