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Finding the Fourth Proportional to 11,369.99, 15,690.76 and 6,525.49

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Solution

The fourth proportional to 11,369.99, 15,690.76 and 6,525.49 is: 9,005.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,369.99 : 15,690.76 = 6,525.49 : x
  2. Step 2: Convert to fraction form
    11,369.99/15,690.76 = 6,525.49/x
  3. Step 3: Cross multiply
    11,369.99x = 15,690.76 × 6,525.49
  4. Step 4: Simplify right side
    11,369.99x = 102,389,864.84
  5. Step 5: Solve for x
    x = 102,389,864.84/11,369.99
  6. Step 6: Final answer
    x = 9,005.28

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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.