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Finding the Fourth Proportional to 11,699.64, 16,137.05 and 7,446.51

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Solution

The fourth proportional to 11,699.64, 16,137.05 and 7,446.51 is: 10,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.64 : 16,137.05 = 7,446.51 : x
  2. Step 2: Convert to fraction form
    11,699.64/16,137.05 = 7,446.51/x
  3. Step 3: Cross multiply
    11,699.64x = 16,137.05 × 7,446.51
  4. Step 4: Simplify right side
    11,699.64x = 120,164,666.96
  5. Step 5: Solve for x
    x = 120,164,666.96/11,699.64
  6. Step 6: Final answer
    x = 10,270.80

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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.