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Finding the Fourth Proportional to 8,941.12, 12,340.16 and 8,547.36

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Solution

The fourth proportional to 8,941.12, 12,340.16 and 8,547.36 is: 11,796.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.12 : 12,340.16 = 8,547.36 : x
  2. Step 2: Convert to fraction form
    8,941.12/12,340.16 = 8,547.36/x
  3. Step 3: Cross multiply
    8,941.12x = 12,340.16 × 8,547.36
  4. Step 4: Simplify right side
    8,941.12x = 105,475,789.98
  5. Step 5: Solve for x
    x = 105,475,789.98/8,941.12
  6. Step 6: Final answer
    x = 11,796.71

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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.