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Finding the Fourth Proportional to 66,424.77, 99,643.05 and 22,051.92

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Solution

The fourth proportional to 66,424.77, 99,643.05 and 22,051.92 is: 33,079.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,424.77 : 99,643.05 = 22,051.92 : x
  2. Step 2: Convert to fraction form
    66,424.77/99,643.05 = 22,051.92/x
  3. Step 3: Cross multiply
    66,424.77x = 99,643.05 × 22,051.92
  4. Step 4: Simplify right side
    66,424.77x = 2,197,320,567.16
  5. Step 5: Solve for x
    x = 2,197,320,567.16/66,424.77
  6. Step 6: Final answer
    x = 33,079.84

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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.