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Finding the Fourth Proportional to 9,151.62, 13,716.83 and 4,210.89

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Solution

The fourth proportional to 9,151.62, 13,716.83 and 4,210.89 is: 6,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.62 : 13,716.83 = 4,210.89 : x
  2. Step 2: Convert to fraction form
    9,151.62/13,716.83 = 4,210.89/x
  3. Step 3: Cross multiply
    9,151.62x = 13,716.83 × 4,210.89
  4. Step 4: Simplify right side
    9,151.62x = 57,760,041.22
  5. Step 5: Solve for x
    x = 57,760,041.22/9,151.62
  6. Step 6: Final answer
    x = 6,311.46

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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.