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Finding the Fourth Proportional to 7,908.66, 10,914.12 and 4,372.00

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Solution

The fourth proportional to 7,908.66, 10,914.12 and 4,372.00 is: 6,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.66 : 10,914.12 = 4,372.00 : x
  2. Step 2: Convert to fraction form
    7,908.66/10,914.12 = 4,372.00/x
  3. Step 3: Cross multiply
    7,908.66x = 10,914.12 × 4,372.00
  4. Step 4: Simplify right side
    7,908.66x = 47,716,505.35
  5. Step 5: Solve for x
    x = 47,716,505.35/7,908.66
  6. Step 6: Final answer
    x = 6,033.45

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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.