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Finding the Fourth Proportional to 5,816.70, 8,715.45 and 4,952.70

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Solution

The fourth proportional to 5,816.70, 8,715.45 and 4,952.70 is: 7,420.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,816.70 : 8,715.45 = 4,952.70 : x
  2. Step 2: Convert to fraction form
    5,816.70/8,715.45 = 4,952.70/x
  3. Step 3: Cross multiply
    5,816.70x = 8,715.45 × 4,952.70
  4. Step 4: Simplify right side
    5,816.70x = 43,165,009.22
  5. Step 5: Solve for x
    x = 43,165,009.22/5,816.70
  6. Step 6: Final answer
    x = 7,420.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.