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Finding the Fourth Proportional to 7,710.11, 10,639.94 and 4,353.62

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Solution

The fourth proportional to 7,710.11, 10,639.94 and 4,353.62 is: 6,007.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.11 : 10,639.94 = 4,353.62 : x
  2. Step 2: Convert to fraction form
    7,710.11/10,639.94 = 4,353.62/x
  3. Step 3: Cross multiply
    7,710.11x = 10,639.94 × 4,353.62
  4. Step 4: Simplify right side
    7,710.11x = 46,322,233.81
  5. Step 5: Solve for x
    x = 46,322,233.81/7,710.11
  6. Step 6: Final answer
    x = 6,007.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.