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Finding the Fourth Proportional to 7,074.70, 9,763.27 and 4,242.53

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Solution

The fourth proportional to 7,074.70, 9,763.27 and 4,242.53 is: 5,854.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.70 : 9,763.27 = 4,242.53 : x
  2. Step 2: Convert to fraction form
    7,074.70/9,763.27 = 4,242.53/x
  3. Step 3: Cross multiply
    7,074.70x = 9,763.27 × 4,242.53
  4. Step 4: Simplify right side
    7,074.70x = 41,420,979.67
  5. Step 5: Solve for x
    x = 41,420,979.67/7,074.70
  6. Step 6: Final answer
    x = 5,854.81

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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.