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Finding the Fourth Proportional to 8,791.65, 12,123.27 and 5,803.56

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Solution

The fourth proportional to 8,791.65, 12,123.27 and 5,803.56 is: 8,002.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.65 : 12,123.27 = 5,803.56 : x
  2. Step 2: Convert to fraction form
    8,791.65/12,123.27 = 5,803.56/x
  3. Step 3: Cross multiply
    8,791.65x = 12,123.27 × 5,803.56
  4. Step 4: Simplify right side
    8,791.65x = 70,358,124.84
  5. Step 5: Solve for x
    x = 70,358,124.84/8,791.65
  6. Step 6: Final answer
    x = 8,002.84

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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.