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Finding the Fourth Proportional to 8,992.35, 12,409.46 and 4,959.08

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Solution

The fourth proportional to 8,992.35, 12,409.46 and 4,959.08 is: 6,843.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.35 : 12,409.46 = 4,959.08 : x
  2. Step 2: Convert to fraction form
    8,992.35/12,409.46 = 4,959.08/x
  3. Step 3: Cross multiply
    8,992.35x = 12,409.46 × 4,959.08
  4. Step 4: Simplify right side
    8,992.35x = 61,539,461.45
  5. Step 5: Solve for x
    x = 61,539,461.45/8,992.35
  6. Step 6: Final answer
    x = 6,843.54

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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.