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Finding the Fourth Proportional to 3,115.87, 4,673.50 and 924.41

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Solution

The fourth proportional to 3,115.87, 4,673.50 and 924.41 is: 1,386.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.87 : 4,673.50 = 924.41 : x
  2. Step 2: Convert to fraction form
    3,115.87/4,673.50 = 924.41/x
  3. Step 3: Cross multiply
    3,115.87x = 4,673.50 × 924.41
  4. Step 4: Simplify right side
    3,115.87x = 4,320,239.51
  5. Step 5: Solve for x
    x = 4,320,239.51/3,115.87
  6. Step 6: Final answer
    x = 1,386.53

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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.