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Finding the Fourth Proportional to 66,465.63, 99,764.01 and 29,051.55

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Solution

The fourth proportional to 66,465.63, 99,764.01 and 29,051.55 is: 43,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,465.63 : 99,764.01 = 29,051.55 : x
  2. Step 2: Convert to fraction form
    66,465.63/99,764.01 = 29,051.55/x
  3. Step 3: Cross multiply
    66,465.63x = 99,764.01 × 29,051.55
  4. Step 4: Simplify right side
    66,465.63x = 2,898,299,124.72
  5. Step 5: Solve for x
    x = 2,898,299,124.72/66,465.63
  6. Step 6: Final answer
    x = 43,605.98

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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.