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Finding the Fourth Proportional to 5,242.97, 7,865.62 and 1,734.08

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Solution

The fourth proportional to 5,242.97, 7,865.62 and 1,734.08 is: 2,601.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.97 : 7,865.62 = 1,734.08 : x
  2. Step 2: Convert to fraction form
    5,242.97/7,865.62 = 1,734.08/x
  3. Step 3: Cross multiply
    5,242.97x = 7,865.62 × 1,734.08
  4. Step 4: Simplify right side
    5,242.97x = 13,639,570.67
  5. Step 5: Solve for x
    x = 13,639,570.67/5,242.97
  6. Step 6: Final answer
    x = 2,601.50

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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.