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Finding the Fourth Proportional to 8,975.44, 12,384.24 and 5,437.99

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Solution

The fourth proportional to 8,975.44, 12,384.24 and 5,437.99 is: 7,503.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.44 : 12,384.24 = 5,437.99 : x
  2. Step 2: Convert to fraction form
    8,975.44/12,384.24 = 5,437.99/x
  3. Step 3: Cross multiply
    8,975.44x = 12,384.24 × 5,437.99
  4. Step 4: Simplify right side
    8,975.44x = 67,345,311.36
  5. Step 5: Solve for x
    x = 67,345,311.36/8,975.44
  6. Step 6: Final answer
    x = 7,503.29

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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.