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Finding the Fourth Proportional to 1,699.88, 2,347.48 and 1,464.80

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Solution

The fourth proportional to 1,699.88, 2,347.48 and 1,464.80 is: 2,022.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,699.88 : 2,347.48 = 1,464.80 : x
  2. Step 2: Convert to fraction form
    1,699.88/2,347.48 = 1,464.80/x
  3. Step 3: Cross multiply
    1,699.88x = 2,347.48 × 1,464.80
  4. Step 4: Simplify right side
    1,699.88x = 3,438,588.70
  5. Step 5: Solve for x
    x = 3,438,588.70/1,699.88
  6. Step 6: Final answer
    x = 2,022.84

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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.