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Finding the Fourth Proportional to 8,992.08, 12,409.47 and 6,009.12

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Solution

The fourth proportional to 8,992.08, 12,409.47 and 6,009.12 is: 8,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.08 : 12,409.47 = 6,009.12 : x
  2. Step 2: Convert to fraction form
    8,992.08/12,409.47 = 6,009.12/x
  3. Step 3: Cross multiply
    8,992.08x = 12,409.47 × 6,009.12
  4. Step 4: Simplify right side
    8,992.08x = 74,569,994.37
  5. Step 5: Solve for x
    x = 74,569,994.37/8,992.08
  6. Step 6: Final answer
    x = 8,292.85

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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.