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Finding the Fourth Proportional to 1,666.82, 2,501.24 and 926.99

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Solution

The fourth proportional to 1,666.82, 2,501.24 and 926.99 is: 1,391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.82 : 2,501.24 = 926.99 : x
  2. Step 2: Convert to fraction form
    1,666.82/2,501.24 = 926.99/x
  3. Step 3: Cross multiply
    1,666.82x = 2,501.24 × 926.99
  4. Step 4: Simplify right side
    1,666.82x = 2,318,624.47
  5. Step 5: Solve for x
    x = 2,318,624.47/1,666.82
  6. Step 6: Final answer
    x = 1,391.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.