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Finding the Fourth Proportional to 8,772.84, 13,159.26 and 2,447.47

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Solution

The fourth proportional to 8,772.84, 13,159.26 and 2,447.47 is: 3,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.84 : 13,159.26 = 2,447.47 : x
  2. Step 2: Convert to fraction form
    8,772.84/13,159.26 = 2,447.47/x
  3. Step 3: Cross multiply
    8,772.84x = 13,159.26 × 2,447.47
  4. Step 4: Simplify right side
    8,772.84x = 32,206,894.07
  5. Step 5: Solve for x
    x = 32,206,894.07/8,772.84
  6. Step 6: Final answer
    x = 3,671.21

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Double scale
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Similar ratio
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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.