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Finding the Fourth Proportional to 5,784.60, 7,981.00 and 3,545.66

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Solution

The fourth proportional to 5,784.60, 7,981.00 and 3,545.66 is: 4,891.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,784.60 : 7,981.00 = 3,545.66 : x
  2. Step 2: Convert to fraction form
    5,784.60/7,981.00 = 3,545.66/x
  3. Step 3: Cross multiply
    5,784.60x = 7,981.00 × 3,545.66
  4. Step 4: Simplify right side
    5,784.60x = 28,297,923.55
  5. Step 5: Solve for x
    x = 28,297,923.55/5,784.60
  6. Step 6: Final answer
    x = 4,891.94

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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.