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Finding the Fourth Proportional to 3,340.04, 5,010.28 and 874.92

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Solution

The fourth proportional to 3,340.04, 5,010.28 and 874.92 is: 1,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.04 : 5,010.28 = 874.92 : x
  2. Step 2: Convert to fraction form
    3,340.04/5,010.28 = 874.92/x
  3. Step 3: Cross multiply
    3,340.04x = 5,010.28 × 874.92
  4. Step 4: Simplify right side
    3,340.04x = 4,383,594.18
  5. Step 5: Solve for x
    x = 4,383,594.18/3,340.04
  6. Step 6: Final answer
    x = 1,312.44

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1.5x scale

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.