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Finding the Fourth Proportional to 9,718.64, 14,578.92 and 2,794.16

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Solution

The fourth proportional to 9,718.64, 14,578.92 and 2,794.16 is: 4,191.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,718.64 : 14,578.92 = 2,794.16 : x
  2. Step 2: Convert to fraction form
    9,718.64/14,578.92 = 2,794.16/x
  3. Step 3: Cross multiply
    9,718.64x = 14,578.92 × 2,794.16
  4. Step 4: Simplify right side
    9,718.64x = 40,735,835.11
  5. Step 5: Solve for x
    x = 40,735,835.11/9,718.64
  6. Step 6: Final answer
    x = 4,191.52

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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.