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Finding the Fourth Proportional to 9,322.92, 13,989.06 and 4,392

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Solution

The fourth proportional to 9,322.92, 13,989.06 and 4,392 is: 6,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,322.92 : 13,989.06 = 4,392 : x
  2. Step 2: Convert to fraction form
    9,322.92/13,989.06 = 4,392/x
  3. Step 3: Cross multiply
    9,322.92x = 13,989.06 × 4,392
  4. Step 4: Simplify right side
    9,322.92x = 61,439,951.52
  5. Step 5: Solve for x
    x = 61,439,951.52/9,322.92
  6. Step 6: Final answer
    x = 6,590.20

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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.