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Finding the Fourth Proportional to 7,476, 10,320.12 and 4,683.12

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Solution

The fourth proportional to 7,476, 10,320.12 and 4,683.12 is: 6,464.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,476 : 10,320.12 = 4,683.12 : x
  2. Step 2: Convert to fraction form
    7,476/10,320.12 = 4,683.12/x
  3. Step 3: Cross multiply
    7,476x = 10,320.12 × 4,683.12
  4. Step 4: Simplify right side
    7,476x = 48,330,360.37
  5. Step 5: Solve for x
    x = 48,330,360.37/7,476
  6. Step 6: Final answer
    x = 6,464.74

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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.