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Finding the Fourth Proportional to 9,916.92, 14,944.95 and 8,930.88

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Solution

The fourth proportional to 9,916.92, 14,944.95 and 8,930.88 is: 13,458.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.92 : 14,944.95 = 8,930.88 : x
  2. Step 2: Convert to fraction form
    9,916.92/14,944.95 = 8,930.88/x
  3. Step 3: Cross multiply
    9,916.92x = 14,944.95 × 8,930.88
  4. Step 4: Simplify right side
    9,916.92x = 133,471,555.06
  5. Step 5: Solve for x
    x = 133,471,555.06/9,916.92
  6. Step 6: Final answer
    x = 13,458.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.