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Finding the Fourth Proportional to 7,192.77, 9,919.44 and 4,535.55

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Solution

The fourth proportional to 7,192.77, 9,919.44 and 4,535.55 is: 6,254.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192.77 : 9,919.44 = 4,535.55 : x
  2. Step 2: Convert to fraction form
    7,192.77/9,919.44 = 4,535.55/x
  3. Step 3: Cross multiply
    7,192.77x = 9,919.44 × 4,535.55
  4. Step 4: Simplify right side
    7,192.77x = 44,990,116.09
  5. Step 5: Solve for x
    x = 44,990,116.09/7,192.77
  6. Step 6: Final answer
    x = 6,254.91

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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.