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Finding the Fourth Proportional to 13,262.15, 19,863.83 and 7,701.70

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Solution

The fourth proportional to 13,262.15, 19,863.83 and 7,701.70 is: 11,535.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.15 : 19,863.83 = 7,701.70 : x
  2. Step 2: Convert to fraction form
    13,262.15/19,863.83 = 7,701.70/x
  3. Step 3: Cross multiply
    13,262.15x = 19,863.83 × 7,701.70
  4. Step 4: Simplify right side
    13,262.15x = 152,985,266.35
  5. Step 5: Solve for x
    x = 152,985,266.35/13,262.15
  6. Step 6: Final answer
    x = 11,535.48

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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.