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Finding the Fourth Proportional to 8,620.63, 11,897.07 and 5,792.71

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Solution

The fourth proportional to 8,620.63, 11,897.07 and 5,792.71 is: 7,994.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.63 : 11,897.07 = 5,792.71 : x
  2. Step 2: Convert to fraction form
    8,620.63/11,897.07 = 5,792.71/x
  3. Step 3: Cross multiply
    8,620.63x = 11,897.07 × 5,792.71
  4. Step 4: Simplify right side
    8,620.63x = 68,916,276.36
  5. Step 5: Solve for x
    x = 68,916,276.36/8,620.63
  6. Step 6: Final answer
    x = 7,994.34

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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.