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Finding the Fourth Proportional to 3,349.95, 5,028 and 1,707.72

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Solution

The fourth proportional to 3,349.95, 5,028 and 1,707.72 is: 2,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,349.95 : 5,028 = 1,707.72 : x
  2. Step 2: Convert to fraction form
    3,349.95/5,028 = 1,707.72/x
  3. Step 3: Cross multiply
    3,349.95x = 5,028 × 1,707.72
  4. Step 4: Simplify right side
    3,349.95x = 8,586,416.16
  5. Step 5: Solve for x
    x = 8,586,416.16/3,349.95
  6. Step 6: Final answer
    x = 2,563.15

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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.