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Finding the Fourth Proportional to 9,899.72, 14,850.03 and 5,513.87

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Solution

The fourth proportional to 9,899.72, 14,850.03 and 5,513.87 is: 8,271.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.72 : 14,850.03 = 5,513.87 : x
  2. Step 2: Convert to fraction form
    9,899.72/14,850.03 = 5,513.87/x
  3. Step 3: Cross multiply
    9,899.72x = 14,850.03 × 5,513.87
  4. Step 4: Simplify right side
    9,899.72x = 81,881,134.92
  5. Step 5: Solve for x
    x = 81,881,134.92/9,899.72
  6. Step 6: Final answer
    x = 8,271.06

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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.