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Finding the Fourth Proportional to 66,309.93, 99,467.64 and 19,562.82

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Solution

The fourth proportional to 66,309.93, 99,467.64 and 19,562.82 is: 29,345.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,309.93 : 99,467.64 = 19,562.82 : x
  2. Step 2: Convert to fraction form
    66,309.93/99,467.64 = 19,562.82/x
  3. Step 3: Cross multiply
    66,309.93x = 99,467.64 × 19,562.82
  4. Step 4: Simplify right side
    66,309.93x = 1,945,867,537.14
  5. Step 5: Solve for x
    x = 1,945,867,537.14/66,309.93
  6. Step 6: Final answer
    x = 29,345.04

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1.5x scale

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.