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Finding the Fourth Proportional to 1,907.62, 2,862.34 and 933.19

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Solution

The fourth proportional to 1,907.62, 2,862.34 and 933.19 is: 1,400.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.62 : 2,862.34 = 933.19 : x
  2. Step 2: Convert to fraction form
    1,907.62/2,862.34 = 933.19/x
  3. Step 3: Cross multiply
    1,907.62x = 2,862.34 × 933.19
  4. Step 4: Simplify right side
    1,907.62x = 2,671,097.58
  5. Step 5: Solve for x
    x = 2,671,097.58/1,907.62
  6. Step 6: Final answer
    x = 1,400.23

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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.