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Finding the Fourth Proportional to 4,886.52, 7,330.12 and 1,964.82

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Solution

The fourth proportional to 4,886.52, 7,330.12 and 1,964.82 is: 2,947.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.52 : 7,330.12 = 1,964.82 : x
  2. Step 2: Convert to fraction form
    4,886.52/7,330.12 = 1,964.82/x
  3. Step 3: Cross multiply
    4,886.52x = 7,330.12 × 1,964.82
  4. Step 4: Simplify right side
    4,886.52x = 14,402,366.38
  5. Step 5: Solve for x
    x = 14,402,366.38/4,886.52
  6. Step 6: Final answer
    x = 2,947.37

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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.