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Finding the Fourth Proportional to 11,567.99, 15,960.47 and 7,795.42

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Solution

The fourth proportional to 11,567.99, 15,960.47 and 7,795.42 is: 10,755.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,567.99 : 15,960.47 = 7,795.42 : x
  2. Step 2: Convert to fraction form
    11,567.99/15,960.47 = 7,795.42/x
  3. Step 3: Cross multiply
    11,567.99x = 15,960.47 × 7,795.42
  4. Step 4: Simplify right side
    11,567.99x = 124,418,488.17
  5. Step 5: Solve for x
    x = 124,418,488.17/11,567.99
  6. Step 6: Final answer
    x = 10,755.41

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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.