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Finding the Fourth Proportional to 66,317.64, 99,482.94 and 19,583.88

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Solution

The fourth proportional to 66,317.64, 99,482.94 and 19,583.88 is: 29,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,317.64 : 99,482.94 = 19,583.88 : x
  2. Step 2: Convert to fraction form
    66,317.64/99,482.94 = 19,583.88/x
  3. Step 3: Cross multiply
    66,317.64x = 99,482.94 × 19,583.88
  4. Step 4: Simplify right side
    66,317.64x = 1,948,261,959.01
  5. Step 5: Solve for x
    x = 1,948,261,959.01/66,317.64
  6. Step 6: Final answer
    x = 29,377.73

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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.