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Finding the Fourth Proportional to 3,502.80, 5,315.04 and 3,502.80

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Solution

The fourth proportional to 3,502.80, 5,315.04 and 3,502.80 is: 5,315.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,502.80 : 5,315.04 = 3,502.80 : x
  2. Step 2: Convert to fraction form
    3,502.80/5,315.04 = 3,502.80/x
  3. Step 3: Cross multiply
    3,502.80x = 5,315.04 × 3,502.80
  4. Step 4: Simplify right side
    3,502.80x = 18,617,522.11
  5. Step 5: Solve for x
    x = 18,617,522.11/3,502.80
  6. Step 6: Final answer
    x = 5,315.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.