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Finding the Fourth Proportional to 9,325.53, 12,869.28 and 5,347.62

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Solution

The fourth proportional to 9,325.53, 12,869.28 and 5,347.62 is: 7,379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,325.53 : 12,869.28 = 5,347.62 : x
  2. Step 2: Convert to fraction form
    9,325.53/12,869.28 = 5,347.62/x
  3. Step 3: Cross multiply
    9,325.53x = 12,869.28 × 5,347.62
  4. Step 4: Simplify right side
    9,325.53x = 68,820,019.11
  5. Step 5: Solve for x
    x = 68,820,019.11/9,325.53
  6. Step 6: Final answer
    x = 7,379.74

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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.