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Finding the Fourth Proportional to 7,360.12, 11,040.90 and 2,429.92

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Solution

The fourth proportional to 7,360.12, 11,040.90 and 2,429.92 is: 3,645.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,360.12 : 11,040.90 = 2,429.92 : x
  2. Step 2: Convert to fraction form
    7,360.12/11,040.90 = 2,429.92/x
  3. Step 3: Cross multiply
    7,360.12x = 11,040.90 × 2,429.92
  4. Step 4: Simplify right side
    7,360.12x = 26,828,503.73
  5. Step 5: Solve for x
    x = 26,828,503.73/7,360.12
  6. Step 6: Final answer
    x = 3,645.12

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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.