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Finding the Fourth Proportional to 5,686.77, 7,790.92 and 5,473.71

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Solution

The fourth proportional to 5,686.77, 7,790.92 and 5,473.71 is: 7,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.77 : 7,790.92 = 5,473.71 : x
  2. Step 2: Convert to fraction form
    5,686.77/7,790.92 = 5,473.71/x
  3. Step 3: Cross multiply
    5,686.77x = 7,790.92 × 5,473.71
  4. Step 4: Simplify right side
    5,686.77x = 42,645,236.71
  5. Step 5: Solve for x
    x = 42,645,236.71/5,686.77
  6. Step 6: Final answer
    x = 7,499.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.