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Finding the Fourth Proportional to 8,369.53, 11,550.40 and 5,011.88

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Solution

The fourth proportional to 8,369.53, 11,550.40 and 5,011.88 is: 6,916.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.53 : 11,550.40 = 5,011.88 : x
  2. Step 2: Convert to fraction form
    8,369.53/11,550.40 = 5,011.88/x
  3. Step 3: Cross multiply
    8,369.53x = 11,550.40 × 5,011.88
  4. Step 4: Simplify right side
    8,369.53x = 57,889,148.47
  5. Step 5: Solve for x
    x = 57,889,148.47/8,369.53
  6. Step 6: Final answer
    x = 6,916.66

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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.