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Finding the Fourth Proportional to 7,709.52, 10,639.09 and 4,352.16

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Solution

The fourth proportional to 7,709.52, 10,639.09 and 4,352.16 is: 6,005.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.52 : 10,639.09 = 4,352.16 : x
  2. Step 2: Convert to fraction form
    7,709.52/10,639.09 = 4,352.16/x
  3. Step 3: Cross multiply
    7,709.52x = 10,639.09 × 4,352.16
  4. Step 4: Simplify right side
    7,709.52x = 46,303,021.93
  5. Step 5: Solve for x
    x = 46,303,021.93/7,709.52
  6. Step 6: Final answer
    x = 6,005.95

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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.