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Finding the Fourth Proportional to 7,896.60, 10,897.20 and 4,359.74

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Solution

The fourth proportional to 7,896.60, 10,897.20 and 4,359.74 is: 6,016.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.60 : 10,897.20 = 4,359.74 : x
  2. Step 2: Convert to fraction form
    7,896.60/10,897.20 = 4,359.74/x
  3. Step 3: Cross multiply
    7,896.60x = 10,897.20 × 4,359.74
  4. Step 4: Simplify right side
    7,896.60x = 47,508,958.73
  5. Step 5: Solve for x
    x = 47,508,958.73/7,896.60
  6. Step 6: Final answer
    x = 6,016.38

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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.