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Finding the Fourth Proportional to 8,809.84, 13,214.85 and 2,966.46

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Solution

The fourth proportional to 8,809.84, 13,214.85 and 2,966.46 is: 4,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.84 : 13,214.85 = 2,966.46 : x
  2. Step 2: Convert to fraction form
    8,809.84/13,214.85 = 2,966.46/x
  3. Step 3: Cross multiply
    8,809.84x = 13,214.85 × 2,966.46
  4. Step 4: Simplify right side
    8,809.84x = 39,201,323.93
  5. Step 5: Solve for x
    x = 39,201,323.93/8,809.84
  6. Step 6: Final answer
    x = 4,449.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.