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Finding the Fourth Proportional to 5,569.04, 7,685.20 and 3,085.04

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Solution

The fourth proportional to 5,569.04, 7,685.20 and 3,085.04 is: 4,257.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,569.04 : 7,685.20 = 3,085.04 : x
  2. Step 2: Convert to fraction form
    5,569.04/7,685.20 = 3,085.04/x
  3. Step 3: Cross multiply
    5,569.04x = 7,685.20 × 3,085.04
  4. Step 4: Simplify right side
    5,569.04x = 23,709,149.41
  5. Step 5: Solve for x
    x = 23,709,149.41/5,569.04
  6. Step 6: Final answer
    x = 4,257.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.