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Finding the Fourth Proportional to 1,732, 2,390.01 and 985.99

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Solution

The fourth proportional to 1,732, 2,390.01 and 985.99 is: 1,360.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732 : 2,390.01 = 985.99 : x
  2. Step 2: Convert to fraction form
    1,732/2,390.01 = 985.99/x
  3. Step 3: Cross multiply
    1,732x = 2,390.01 × 985.99
  4. Step 4: Simplify right side
    1,732x = 2,356,525.96
  5. Step 5: Solve for x
    x = 2,356,525.96/1,732
  6. Step 6: Final answer
    x = 1,360.58

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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.