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Finding the Fourth Proportional to 7,700.79, 10,608.67 and 7,325.59

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Solution

The fourth proportional to 7,700.79, 10,608.67 and 7,325.59 is: 10,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.79 : 10,608.67 = 7,325.59 : x
  2. Step 2: Convert to fraction form
    7,700.79/10,608.67 = 7,325.59/x
  3. Step 3: Cross multiply
    7,700.79x = 10,608.67 × 7,325.59
  4. Step 4: Simplify right side
    7,700.79x = 77,714,677.19
  5. Step 5: Solve for x
    x = 77,714,677.19/7,700.79
  6. Step 6: Final answer
    x = 10,091.78

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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.