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Finding the Fourth Proportional to 1,833.75, 2,530.71 and 1,135.53

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Solution

The fourth proportional to 1,833.75, 2,530.71 and 1,135.53 is: 1,567.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,833.75 : 2,530.71 = 1,135.53 : x
  2. Step 2: Convert to fraction form
    1,833.75/2,530.71 = 1,135.53/x
  3. Step 3: Cross multiply
    1,833.75x = 2,530.71 × 1,135.53
  4. Step 4: Simplify right side
    1,833.75x = 2,873,697.13
  5. Step 5: Solve for x
    x = 2,873,697.13/1,833.75
  6. Step 6: Final answer
    x = 1,567.11

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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.