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Finding the Fourth Proportional to 2,886.69, 4,329.69 and 1,132.99

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Solution

The fourth proportional to 2,886.69, 4,329.69 and 1,132.99 is: 1,699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.69 : 4,329.69 = 1,132.99 : x
  2. Step 2: Convert to fraction form
    2,886.69/4,329.69 = 1,132.99/x
  3. Step 3: Cross multiply
    2,886.69x = 4,329.69 × 1,132.99
  4. Step 4: Simplify right side
    2,886.69x = 4,905,485.18
  5. Step 5: Solve for x
    x = 4,905,485.18/2,886.69
  6. Step 6: Final answer
    x = 1,699.35

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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.