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Finding the Fourth Proportional to 9,326.64, 13,979.80 and 4,650.11

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Solution

The fourth proportional to 9,326.64, 13,979.80 and 4,650.11 is: 6,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,326.64 : 13,979.80 = 4,650.11 : x
  2. Step 2: Convert to fraction form
    9,326.64/13,979.80 = 4,650.11/x
  3. Step 3: Cross multiply
    9,326.64x = 13,979.80 × 4,650.11
  4. Step 4: Simplify right side
    9,326.64x = 65,007,607.78
  5. Step 5: Solve for x
    x = 65,007,607.78/9,326.64
  6. Step 6: Final answer
    x = 6,970.10

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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.