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Finding the Fourth Proportional to 2,937.57, 4,406.35 and 716.40

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Solution

The fourth proportional to 2,937.57, 4,406.35 and 716.40 is: 1,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,937.57 : 4,406.35 = 716.40 : x
  2. Step 2: Convert to fraction form
    2,937.57/4,406.35 = 716.40/x
  3. Step 3: Cross multiply
    2,937.57x = 4,406.35 × 716.40
  4. Step 4: Simplify right side
    2,937.57x = 3,156,707.35
  5. Step 5: Solve for x
    x = 3,156,707.35/2,937.57
  6. Step 6: Final answer
    x = 1,074.60

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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.