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Finding the Fourth Proportional to 9,143.73, 13,716.08 and 2,904.23

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Solution

The fourth proportional to 9,143.73, 13,716.08 and 2,904.23 is: 4,356.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.73 : 13,716.08 = 2,904.23 : x
  2. Step 2: Convert to fraction form
    9,143.73/13,716.08 = 2,904.23/x
  3. Step 3: Cross multiply
    9,143.73x = 13,716.08 × 2,904.23
  4. Step 4: Simplify right side
    9,143.73x = 39,834,651.02
  5. Step 5: Solve for x
    x = 39,834,651.02/9,143.73
  6. Step 6: Final answer
    x = 4,356.50

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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.