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Finding the Fourth Proportional to 66,508.02, 99,753.93 and 19,764.54

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Solution

The fourth proportional to 66,508.02, 99,753.93 and 19,764.54 is: 29,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,508.02 : 99,753.93 = 19,764.54 : x
  2. Step 2: Convert to fraction form
    66,508.02/99,753.93 = 19,764.54/x
  3. Step 3: Cross multiply
    66,508.02x = 99,753.93 × 19,764.54
  4. Step 4: Simplify right side
    66,508.02x = 1,971,590,539.64
  5. Step 5: Solve for x
    x = 1,971,590,539.64/66,508.02
  6. Step 6: Final answer
    x = 29,644.40

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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.