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Finding the Fourth Proportional to 7,700.06, 10,620.63 and 7,584.86

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Solution

The fourth proportional to 7,700.06, 10,620.63 and 7,584.86 is: 10,461.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.06 : 10,620.63 = 7,584.86 : x
  2. Step 2: Convert to fraction form
    7,700.06/10,620.63 = 7,584.86/x
  3. Step 3: Cross multiply
    7,700.06x = 10,620.63 × 7,584.86
  4. Step 4: Simplify right side
    7,700.06x = 80,555,991.66
  5. Step 5: Solve for x
    x = 80,555,991.66/7,700.06
  6. Step 6: Final answer
    x = 10,461.74

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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.