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Finding the Fourth Proportional to 8,992.95, 12,409.81 and 4,960.48

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Solution

The fourth proportional to 8,992.95, 12,409.81 and 4,960.48 is: 6,845.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.95 : 12,409.81 = 4,960.48 : x
  2. Step 2: Convert to fraction form
    8,992.95/12,409.81 = 4,960.48/x
  3. Step 3: Cross multiply
    8,992.95x = 12,409.81 × 4,960.48
  4. Step 4: Simplify right side
    8,992.95x = 61,558,552.26
  5. Step 5: Solve for x
    x = 61,558,552.26/8,992.95
  6. Step 6: Final answer
    x = 6,845.21

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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.