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Finding the Fourth Proportional to 7,894.72, 10,895.44 and 5,508.16

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Solution

The fourth proportional to 7,894.72, 10,895.44 and 5,508.16 is: 7,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,894.72 : 10,895.44 = 5,508.16 : x
  2. Step 2: Convert to fraction form
    7,894.72/10,895.44 = 5,508.16/x
  3. Step 3: Cross multiply
    7,894.72x = 10,895.44 × 5,508.16
  4. Step 4: Simplify right side
    7,894.72x = 60,013,772.31
  5. Step 5: Solve for x
    x = 60,013,772.31/7,894.72
  6. Step 6: Final answer
    x = 7,601.76

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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.