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Finding the Fourth Proportional to 19,964.68, 29,950.16 and 7,482.98

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Solution

The fourth proportional to 19,964.68, 29,950.16 and 7,482.98 is: 11,225.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.68 : 29,950.16 = 7,482.98 : x
  2. Step 2: Convert to fraction form
    19,964.68/29,950.16 = 7,482.98/x
  3. Step 3: Cross multiply
    19,964.68x = 29,950.16 × 7,482.98
  4. Step 4: Simplify right side
    19,964.68x = 224,116,485.74
  5. Step 5: Solve for x
    x = 224,116,485.74/19,964.68
  6. Step 6: Final answer
    x = 11,225.65

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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.