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Finding the Fourth Proportional to 9,882.64, 14,835.64 and 4,043.92

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Solution

The fourth proportional to 9,882.64, 14,835.64 and 4,043.92 is: 6,070.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,882.64 : 14,835.64 = 4,043.92 : x
  2. Step 2: Convert to fraction form
    9,882.64/14,835.64 = 4,043.92/x
  3. Step 3: Cross multiply
    9,882.64x = 14,835.64 × 4,043.92
  4. Step 4: Simplify right side
    9,882.64x = 59,994,141.31
  5. Step 5: Solve for x
    x = 59,994,141.31/9,882.64
  6. Step 6: Final answer
    x = 6,070.66

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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.