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Finding the Fourth Proportional to 7,545.74, 11,318.74 and 2,615.54

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Solution

The fourth proportional to 7,545.74, 11,318.74 and 2,615.54 is: 3,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,545.74 : 11,318.74 = 2,615.54 : x
  2. Step 2: Convert to fraction form
    7,545.74/11,318.74 = 2,615.54/x
  3. Step 3: Cross multiply
    7,545.74x = 11,318.74 × 2,615.54
  4. Step 4: Simplify right side
    7,545.74x = 29,604,554.09
  5. Step 5: Solve for x
    x = 29,604,554.09/7,545.74
  6. Step 6: Final answer
    x = 3,923.35

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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.