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Finding the Fourth Proportional to 8,479.59, 11,700.77 and 4,941.92

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Solution

The fourth proportional to 8,479.59, 11,700.77 and 4,941.92 is: 6,819.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.59 : 11,700.77 = 4,941.92 : x
  2. Step 2: Convert to fraction form
    8,479.59/11,700.77 = 4,941.92/x
  3. Step 3: Cross multiply
    8,479.59x = 11,700.77 × 4,941.92
  4. Step 4: Simplify right side
    8,479.59x = 57,824,186.06
  5. Step 5: Solve for x
    x = 57,824,186.06/8,479.59
  6. Step 6: Final answer
    x = 6,819.22

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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.