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Finding the Fourth Proportional to 13,073.77, 19,605.91 and 7,155.03

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Solution

The fourth proportional to 13,073.77, 19,605.91 and 7,155.03 is: 10,729.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,073.77 : 19,605.91 = 7,155.03 : x
  2. Step 2: Convert to fraction form
    13,073.77/19,605.91 = 7,155.03/x
  3. Step 3: Cross multiply
    13,073.77x = 19,605.91 × 7,155.03
  4. Step 4: Simplify right side
    13,073.77x = 140,280,874.23
  5. Step 5: Solve for x
    x = 140,280,874.23/13,073.77
  6. Step 6: Final answer
    x = 10,729.95

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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.