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Finding the Fourth Proportional to 3,929.94, 5,895.48 and 1,332

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Solution

The fourth proportional to 3,929.94, 5,895.48 and 1,332 is: 1,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.94 : 5,895.48 = 1,332 : x
  2. Step 2: Convert to fraction form
    3,929.94/5,895.48 = 1,332/x
  3. Step 3: Cross multiply
    3,929.94x = 5,895.48 × 1,332
  4. Step 4: Simplify right side
    3,929.94x = 7,852,779.36
  5. Step 5: Solve for x
    x = 7,852,779.36/3,929.94
  6. Step 6: Final answer
    x = 1,998.19

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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.