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Finding the Fourth Proportional to 3,312.48, 4,965.48 and 1,582.32

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Solution

The fourth proportional to 3,312.48, 4,965.48 and 1,582.32 is: 2,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.48 : 4,965.48 = 1,582.32 : x
  2. Step 2: Convert to fraction form
    3,312.48/4,965.48 = 1,582.32/x
  3. Step 3: Cross multiply
    3,312.48x = 4,965.48 × 1,582.32
  4. Step 4: Simplify right side
    3,312.48x = 7,856,978.31
  5. Step 5: Solve for x
    x = 7,856,978.31/3,312.48
  6. Step 6: Final answer
    x = 2,371.93

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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.