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Finding the Fourth Proportional to 11,703.99, 16,159.25 and 7,234.31

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Solution

The fourth proportional to 11,703.99, 16,159.25 and 7,234.31 is: 9,988.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,703.99 : 16,159.25 = 7,234.31 : x
  2. Step 2: Convert to fraction form
    11,703.99/16,159.25 = 7,234.31/x
  3. Step 3: Cross multiply
    11,703.99x = 16,159.25 × 7,234.31
  4. Step 4: Simplify right side
    11,703.99x = 116,901,023.87
  5. Step 5: Solve for x
    x = 116,901,023.87/11,703.99
  6. Step 6: Final answer
    x = 9,988.13

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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.