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Finding the Fourth Proportional to 8,745.99, 13,114.67 and 2,900.63

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Solution

The fourth proportional to 8,745.99, 13,114.67 and 2,900.63 is: 4,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.99 : 13,114.67 = 2,900.63 : x
  2. Step 2: Convert to fraction form
    8,745.99/13,114.67 = 2,900.63/x
  3. Step 3: Cross multiply
    8,745.99x = 13,114.67 × 2,900.63
  4. Step 4: Simplify right side
    8,745.99x = 38,040,725.17
  5. Step 5: Solve for x
    x = 38,040,725.17/8,745.99
  6. Step 6: Final answer
    x = 4,349.50

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Double scale
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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.