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Finding the Fourth Proportional to 6,461.28, 8,916.48 and 3,666.96

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Solution

The fourth proportional to 6,461.28, 8,916.48 and 3,666.96 is: 5,060.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461.28 : 8,916.48 = 3,666.96 : x
  2. Step 2: Convert to fraction form
    6,461.28/8,916.48 = 3,666.96/x
  3. Step 3: Cross multiply
    6,461.28x = 8,916.48 × 3,666.96
  4. Step 4: Simplify right side
    6,461.28x = 32,696,375.50
  5. Step 5: Solve for x
    x = 32,696,375.50/6,461.28
  6. Step 6: Final answer
    x = 5,060.36

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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.