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Finding the Fourth Proportional to 7,900.27, 10,902.16 and 4,363.40

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Solution

The fourth proportional to 7,900.27, 10,902.16 and 4,363.40 is: 6,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.27 : 10,902.16 = 4,363.40 : x
  2. Step 2: Convert to fraction form
    7,900.27/10,902.16 = 4,363.40/x
  3. Step 3: Cross multiply
    7,900.27x = 10,902.16 × 4,363.40
  4. Step 4: Simplify right side
    7,900.27x = 47,570,484.94
  5. Step 5: Solve for x
    x = 47,570,484.94/7,900.27
  6. Step 6: Final answer
    x = 6,021.37

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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.