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Finding the Fourth Proportional to 10,487.58, 14,472.99 and 5,771.90

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Solution

The fourth proportional to 10,487.58, 14,472.99 and 5,771.90 is: 7,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.58 : 14,472.99 = 5,771.90 : x
  2. Step 2: Convert to fraction form
    10,487.58/14,472.99 = 5,771.90/x
  3. Step 3: Cross multiply
    10,487.58x = 14,472.99 × 5,771.90
  4. Step 4: Simplify right side
    10,487.58x = 83,536,578.62
  5. Step 5: Solve for x
    x = 83,536,578.62/10,487.58
  6. Step 6: Final answer
    x = 7,965.29

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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.