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Finding the Fourth Proportional to 10,696.70, 16,047.76 and 8,635.44

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Solution

The fourth proportional to 10,696.70, 16,047.76 and 8,635.44 is: 12,955.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,696.70 : 16,047.76 = 8,635.44 : x
  2. Step 2: Convert to fraction form
    10,696.70/16,047.76 = 8,635.44/x
  3. Step 3: Cross multiply
    10,696.70x = 16,047.76 × 8,635.44
  4. Step 4: Simplify right side
    10,696.70x = 138,579,468.61
  5. Step 5: Solve for x
    x = 138,579,468.61/10,696.70
  6. Step 6: Final answer
    x = 12,955.35

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1.5x scale

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.