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Finding the Fourth Proportional to 9,964.80, 14,956.98 and 7,602.84

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Solution

The fourth proportional to 9,964.80, 14,956.98 and 7,602.84 is: 11,411.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,964.80 : 14,956.98 = 7,602.84 : x
  2. Step 2: Convert to fraction form
    9,964.80/14,956.98 = 7,602.84/x
  3. Step 3: Cross multiply
    9,964.80x = 14,956.98 × 7,602.84
  4. Step 4: Simplify right side
    9,964.80x = 113,715,525.82
  5. Step 5: Solve for x
    x = 113,715,525.82/9,964.80
  6. Step 6: Final answer
    x = 11,411.72

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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.